64499585364 has 24 divisors (see below), whose sum is σ = 167221147520. Its totient is φ = 21499861752.

The previous prime is 64499585333. The next prime is 64499585387. The reversal of 64499585364 is 46358599446.

64499585364 is a `hidden beast` number, since 6 + 4 + 4 + 9 + 95 + 8 + 536 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298609084 + ... + 298609299.

Almost surely, 2^64499585364 is an apocalyptic number.

It is an amenable number.

64499585364 is an abundant number, since it is smaller than the sum of its proper divisors (102721562156).

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

64499585364 is a wasteful number, since it uses less digits than its factorization.

64499585364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597218396 (or 597218388 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 63.

The spelling of 64499585364 in words is "sixty-four billion, four hundred ninety-nine million, five hundred eighty-five thousand, three hundred sixty-four".