64179045620 has 24 divisors (see below), whose sum is σ = 136674252288. Its totient is φ = 25310045600.

The previous prime is 64179045613. The next prime is 64179045727. The reversal of 64179045620 is 2654097146.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22596836 + ... + 22599675.

It is an arithmetic number, because the mean of its divisors is an integer number (5694760512).

Almost surely, 2^64179045620 is an apocalyptic number.

It is an amenable number.

64179045620 is an abundant number, since it is smaller than the sum of its proper divisors (72495206668).

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

64179045620 is a wasteful number, since it uses less digits than its factorization.

64179045620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45196591 (or 45196589 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 64179045620 in words is "sixty-four billion, one hundred seventy-nine million, forty-five thousand, six hundred twenty".