65415773264 has 20 divisors (see below), whose sum is σ = 130168550004. Its totient is φ = 31823889408.

The previous prime is 65415773263. The next prime is 65415773287. The reversal of 65415773264 is 46237751456.

It can be written as a sum of positive squares in 2 ways, for example, as 63362958400 + 2052814864 = 251720^2 + 45308^2 .

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65415773263) by changing a digit.

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, 55249217 + ... + 55250400.

Almost surely, 2^65415773264 is an apocalyptic number.

It is an amenable number.

65415773264 is a deficient number, since it is larger than the sum of its proper divisors (64752776740).

65415773264 is a wasteful number, since it uses less digits than its factorization.

65415773264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110499662 (or 110499656 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 50.

The spelling of 65415773264 in words is "sixty-five billion, four hundred fifteen million, seven hundred seventy-three thousand, two hundred sixty-four".