64157124056 has 16 divisors (see below), whose sum is σ = 120588732600. Its totient is φ = 32000128704.

The previous prime is 64157124047. The next prime is 64157124077. The reversal of 64157124056 is 65042175146.

It is a super-2 number, since 2×64157124056² (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 3 ways as a sum of consecutive naturals, for example, 9800690 + ... + 9807233.

Almost surely, 2^64157124056 is an apocalyptic number.

It is an amenable number.

64157124056 is a deficient number, since it is larger than the sum of its proper divisors (56431608544).

64157124056 is a wasteful number, since it uses less digits than its factorization.

64157124056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19608338 (or 19608334 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 64157124056 in words is "sixty-four billion, one hundred fifty-seven million, one hundred twenty-four thousand, fifty-six".