64315516 has 12 divisors (see below), whose sum is σ = 112719880. Its totient is φ = 32109840.

The previous prime is 64315501. The next prime is 64315519. The reversal of 64315516 is 61551346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64315519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8871 + ... + 14398.

Almost surely, 2^64315516 is an apocalyptic number.

It is an amenable number.

64315516 is a deficient number, since it is larger than the sum of its proper divisors (48404364).

64315516 is a wasteful number, since it uses less digits than its factorization.

64315516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23964 (or 23962 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 64315516 is about 8019.6955054416. The cubic root of 64315516 is about 400.6562477584.

The spelling of 64315516 in words is "sixty-four million, three hundred fifteen thousand, five hundred sixteen".