64976081088 has 28 divisors (see below), whose sum is σ = 171915881720. Its totient is φ = 21658693632.

The previous prime is 64976081087. The next prime is 64976081101. The reversal of 64976081088 is 88018067946.

It is a super-2 number, since 2×64976081088² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64976081087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169208353 + ... + 169208736.

Almost surely, 2^64976081088 is an apocalyptic number.

It is an amenable number.

64976081088 is an abundant number, since it is smaller than the sum of its proper divisors (106939800632).

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

64976081088 is a wasteful number, since it uses less digits than its factorization.

64976081088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338417104 (or 338417094 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 57.

The spelling of 64976081088 in words is "sixty-four billion, nine hundred seventy-six million, eighty-one thousand, eighty-eight".