65976694975 has 24 divisors (see below), whose sum is σ = 83144365920. Its totient is φ = 51924432000.

The previous prime is 65976694939. The next prime is 65976695017. The reversal of 65976694975 is 57949667956.

It is not a de Polignac number, because 65976694975 - 2³³ = 57386760383 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65976694898 and 65976694907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 777961 + ... + 858589.

It is an arithmetic number, because the mean of its divisors is an integer number (3464348580).

Almost surely, 2^65976694975 is an apocalyptic number.

65976694975 is a deficient number, since it is larger than the sum of its proper divisors (17167670945).

65976694975 is a wasteful number, since it uses less digits than its factorization.

65976694975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81171 (or 81166 counting only the distinct ones).

The product of its digits is 771573600, while the sum is 73.

The spelling of 65976694975 in words is "sixty-five billion, nine hundred seventy-six million, six hundred ninety-four thousand, nine hundred seventy-five".