65696672 has 12 divisors (see below), whose sum is σ = 129340386. Its totient is φ = 32848320.

The previous prime is 65696669. The next prime is 65696681. The reversal of 65696672 is 27669656.

It can be written as a sum of positive squares in only one way, i.e., 54700816 + 10995856 = 7396^2 + 3316^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026479 + ... + 1026542.

Almost surely, 2^65696672 is an apocalyptic number.

It is an amenable number.

65696672 is a deficient number, since it is larger than the sum of its proper divisors (63643714).

65696672 is a wasteful number, since it uses less digits than its factorization.

65696672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053031 (or 2053023 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 65696672 is about 8105.3483577204. The cubic root of 65696672 is about 403.5039495515.

The spelling of 65696672 in words is "sixty-five million, six hundred ninety-six thousand, six hundred seventy-two".