64494152100 has 360 divisors, whose sum is σ = 244767333888. Its totient is φ = 14381452800.

The previous prime is 64494152081. The next prime is 64494152131. The reversal of 64494152100 is 125149446.

64494152100 is a `hidden beast` number, since 6 + 4 + 494 + 152 + 10 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2310829 + ... + 2338571.

Almost surely, 2^64494152100 is an apocalyptic number.

64494152100 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 64494152100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122383666944).

64494152100 is an abundant number, since it is smaller than the sum of its proper divisors (180273181788).

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

64494152100 is a wasteful number, since it uses less digits than its factorization.

64494152100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27817 (or 27801 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 64494152100 in words is "sixty-four billion, four hundred ninety-four million, one hundred fifty-two thousand, one hundred".