8392815664 has 20 divisors (see below), whose sum is σ = 16262971504. Its totient is φ = 4195919808.

The previous prime is 8392815649. The next prime is 8392815671. The reversal of 8392815664 is 4665182938.

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, 140389 + ... + 191035.

Almost surely, 2^8392815664 is an apocalyptic number.

It is an amenable number.

8392815664 is a deficient number, since it is larger than the sum of its proper divisors (7870155840).

8392815664 is a wasteful number, since it uses less digits than its factorization.

8392815664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61012 (or 61006 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The square root of 8392815664 is about 91612.3117490220. The cubic root of 8392815664 is about 2032.2130139701.

The spelling of 8392815664 in words is "eight billion, three hundred ninety-two million, eight hundred fifteen thousand, six hundred sixty-four".