64077118880 has 24 divisors (see below), whose sum is σ = 151382193732. Its totient is φ = 25630847488.

The previous prime is 64077118877. The next prime is 64077118901. The reversal of 64077118880 is 8881177046.

It can be written as a sum of positive squares in 2 ways, for example, as 57751779856 + 6325339024 = 240316^2 + 79532^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200240837 + ... + 200241156.

Almost surely, 2^64077118880 is an apocalyptic number.

It is an amenable number.

64077118880 is an abundant number, since it is smaller than the sum of its proper divisors (87305074852).

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

64077118880 is a wasteful number, since it uses less digits than its factorization.

64077118880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400482008 (or 400482000 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 50.

The spelling of 64077118880 in words is "sixty-four billion, seventy-seven million, one hundred eighteen thousand, eight hundred eighty".