65315516 has 12 divisors (see below), whose sum is σ = 130631088. Its totient is φ = 27992352.

The previous prime is 65315449. The next prime is 65315519. The reversal of 65315516 is 61551356.

65315516 is an admirable number.

It is a super-2 number, since 2×65315516² = 8532233260692512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65315519) 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, 1166321 + ... + 1166376.

It is an arithmetic number, because the mean of its divisors is an integer number (10885924).

Almost surely, 2^65315516 is an apocalyptic number.

It is an amenable number.

65315516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65315516 is a wasteful number, since it uses less digits than its factorization.

65315516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332708 (or 2332706 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 65315516 is about 8081.8015318368. The cubic root of 65315516 is about 402.7220918521.

The spelling of 65315516 in words is "sixty-five million, three hundred fifteen thousand, five hundred sixteen".