64880918196 has 48 divisors (see below), whose sum is σ = 155647699200. Its totient is φ = 21024737920.

The previous prime is 64880918177. The next prime is 64880918213. The reversal of 64880918196 is 69181908846.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301995 + ... + 470066.

It is an arithmetic number, because the mean of its divisors is an integer number (3242660400).

Almost surely, 2^64880918196 is an apocalyptic number.

It is an amenable number.

64880918196 is an abundant number, since it is smaller than the sum of its proper divisors (90766781004).

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

64880918196 is a wasteful number, since it uses less digits than its factorization.

64880918196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772264 (or 772262 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 60.

The spelling of 64880918196 in words is "sixty-four billion, eight hundred eighty million, nine hundred eighteen thousand, one hundred ninety-six".