64315016 has 8 divisors (see below), whose sum is σ = 120590670. Its totient is φ = 32157504.

The previous prime is 64315007. The next prime is 64315037. The reversal of 64315016 is 61051346.

It can be written as a sum of positive squares in only one way, i.e., 49646116 + 14668900 = 7046^2 + 3830^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4019681 + ... + 4019696.

Almost surely, 2^64315016 is an apocalyptic number.

It is an amenable number.

64315016 is a deficient number, since it is larger than the sum of its proper divisors (56275654).

64315016 is a wasteful number, since it uses less digits than its factorization.

64315016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8039383 (or 8039379 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 64315016 is about 8019.6643321276. The cubic root of 64315016 is about 400.6552094986.

The spelling of 64315016 in words is "sixty-four million, three hundred fifteen thousand, sixteen".