64316555016 has 32 divisors (see below), whose sum is σ = 183761586240. Its totient is φ = 18376158528.

The previous prime is 64316554997. The next prime is 64316555021. The reversal of 64316555016 is 61055561346.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191418151 + ... + 191418486.

It is an arithmetic number, because the mean of its divisors is an integer number (5742549570).

Almost surely, 2^64316555016 is an apocalyptic number.

It is an amenable number.

64316555016 is an abundant number, since it is smaller than the sum of its proper divisors (119445031224).

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

64316555016 is a wasteful number, since it uses less digits than its factorization.

64316555016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382836653 (or 382836649 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 42.

The spelling of 64316555016 in words is "sixty-four billion, three hundred sixteen million, five hundred fifty-five thousand, sixteen".