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64150894080 = 2933572133147
BaseRepresentation
bin111011101111101100…
…001111011000000000
320010120210020001222000
4323233230033120000
52022340112102310
645245344144000
74430501413500
oct735754173000
9203523201860
1064150894080
112522a564239
1210524008000
136084701730
143167c85a00
151a06d824c0
hexeefb0f600

64150894080 has 1920 divisors, whose sum is σ = 300940738560. Its totient is φ = 12819824640.

The previous prime is 64150894019. The next prime is 64150894099. The reversal of 64150894080 is 8049805146.

64150894080 is a `hidden beast` number, since 64 + 1 + 508 + 9 + 4 + 0 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a super-2 number, since 2×641508940802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1364912617 + ... + 1364912663.

It is an arithmetic number, because the mean of its divisors is an integer number (156739968).

Almost surely, 264150894080 is an apocalyptic number.

64150894080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64150894080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150470369280).

64150894080 is an abundant number, since it is smaller than the sum of its proper divisors (236789844480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64150894080 is a wasteful number, since it uses less digits than its factorization.

64150894080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 64150894080 in words is "sixty-four billion, one hundred fifty million, eight hundred ninety-four thousand, eighty".