64559875512 has 64 divisors (see below), whose sum is σ = 186429600000. Its totient is φ = 18412797440.

The previous prime is 64559875423. The next prime is 64559875543. The reversal of 64559875512 is 21557895546.

It is a super-2 number, since 2×64559875512² (a number of 22 digits) contains 22 as substring.

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, 7188012 + ... + 7196987.

It is an arithmetic number, because the mean of its divisors is an integer number (2912962500).

Almost surely, 2^64559875512 is an apocalyptic number.

It is an amenable number.

64559875512 is an abundant number, since it is smaller than the sum of its proper divisors (121869724488).

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

64559875512 is a wasteful number, since it uses less digits than its factorization.

64559875512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14385036 (or 14385032 counting only the distinct ones).

The product of its digits is 15120000, while the sum is 57.

The spelling of 64559875512 in words is "sixty-four billion, five hundred fifty-nine million, eight hundred seventy-five thousand, five hundred twelve".