65318125636 has 12 divisors (see below), whose sum is σ = 115591065660. Its totient is φ = 32292106880.

The previous prime is 65318125589. The next prime is 65318125699. The reversal of 65318125636 is 63652181356.

It can be written as a sum of positive squares in 2 ways, for example, as 10330689600 + 54987436036 = 101640^2 + 234494^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91738585 + ... + 91739296.

It is an arithmetic number, because the mean of its divisors is an integer number (9632588805).

Almost surely, 2^65318125636 is an apocalyptic number.

It is an amenable number.

65318125636 is a deficient number, since it is larger than the sum of its proper divisors (50272940024).

65318125636 is a wasteful number, since it uses less digits than its factorization.

65318125636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183477974 (or 183477972 counting only the distinct ones).

The product of its digits is 777600, while the sum is 46.

The spelling of 65318125636 in words is "sixty-five billion, three hundred eighteen million, one hundred twenty-five thousand, six hundred thirty-six".