64795740065280 has 1280 divisors, whose sum is σ = 273137660928000. Its totient is φ = 14245760729088.

The previous prime is 64795740065197. The next prime is 64795740065323. The reversal of 64795740065280 is 8256004759746.

64795740065280 is a `hidden beast` number, since 6 + 4 + 7 + 9 + 574 + 0 + 0 + 6 + 52 + 8 + 0 = 666.

64795740065280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a super-2 number, since 2×64795740065280² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3774427257 + ... + 3774444423.

It is an arithmetic number, because the mean of its divisors is an integer number (213388797600).

Almost surely, 2^{64795740065280} is an apocalyptic number.

64795740065280 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 64795740065280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136568830464000).

64795740065280 is an abundant number, since it is smaller than the sum of its proper divisors (208341920862720).

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

64795740065280 is a wasteful number, since it uses less digits than its factorization.

64795740065280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17504 (or 17482 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 63.

The spelling of 64795740065280 in words is "sixty-four trillion, seven hundred ninety-five billion, seven hundred forty million, sixty-five thousand, two hundred eighty".