65164439504 has 20 divisors (see below), whose sum is σ = 126480374976. Its totient is φ = 32524342752.

The previous prime is 65164439453. The next prime is 65164439513. The reversal of 65164439504 is 40593446156.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 3608024 + ... + 3626039.

Almost surely, 2^65164439504 is an apocalyptic number.

It is an amenable number.

65164439504 is a deficient number, since it is larger than the sum of its proper divisors (61315935472).

65164439504 is a wasteful number, since it uses less digits than its factorization.

65164439504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7234634 (or 7234628 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 65164439504 in words is "sixty-five billion, one hundred sixty-four million, four hundred thirty-nine thousand, five hundred four".