64137430560 has 192 divisors, whose sum is σ = 243047347200. Its totient is φ = 13888392192.

The previous prime is 64137430529. The next prime is 64137430613. The reversal of 64137430560 is 6503473146.

64137430560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×64137430560² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 438490 + ... + 566169.

It is an arithmetic number, because the mean of its divisors is an integer number (1265871600).

Almost surely, 2^64137430560 is an apocalyptic number.

64137430560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64137430560 is an abundant number, since it is smaller than the sum of its proper divisors (178909916640).

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

64137430560 is a wasteful number, since it uses less digits than its factorization.

64137430560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004703 (or 1004695 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 39.

The spelling of 64137430560 in words is "sixty-four billion, one hundred thirty-seven million, four hundred thirty thousand, five hundred sixty".