65629671964 has 12 divisors (see below), whose sum is σ = 115181017000. Its totient is φ = 32720809968.

The previous prime is 65629671949. The next prime is 65629672001. The reversal of 65629671964 is 46917692656.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23504934 + ... + 23507725.

Almost surely, 2^65629671964 is an apocalyptic number.

It is an amenable number.

65629671964 is a deficient number, since it is larger than the sum of its proper divisors (49551345036).

65629671964 is a wasteful number, since it uses less digits than its factorization.

65629671964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47013012 (or 47013010 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 61.

The spelling of 65629671964 in words is "sixty-five billion, six hundred twenty-nine million, six hundred seventy-one thousand, nine hundred sixty-four".