65975000691 has 16 divisors (see below), whose sum is σ = 88230435840. Its totient is φ = 43851648960.

The previous prime is 65975000687. The next prime is 65975000737. The reversal of 65975000691 is 19600057956.

It is not a de Polignac number, because 65975000691 - 2² = 65975000687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65975000691.

It is not an unprimeable number, because it can be changed into a prime (65975000291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1336831 + ... + 1385303.

It is an arithmetic number, because the mean of its divisors is an integer number (5514402240).

Almost surely, 2^65975000691 is an apocalyptic number.

65975000691 is a deficient number, since it is larger than the sum of its proper divisors (22255435149).

65975000691 is a wasteful number, since it uses less digits than its factorization.

65975000691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49826.

The product of its (nonzero) digits is 510300, while the sum is 48.

The spelling of 65975000691 in words is "sixty-five billion, nine hundred seventy-five million, six hundred ninety-one", and thus it is an aban number.