8165638896 has 20 divisors (see below), whose sum is σ = 21094567272. Its totient is φ = 2721879616.

The previous prime is 8165638861. The next prime is 8165638909. The reversal of 8165638896 is 6988365618.

It is a super-3 number, since 3×8165638896³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

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, 85058691 + ... + 85058786.

Almost surely, 2^8165638896 is an apocalyptic number.

It is an amenable number.

8165638896 is an abundant number, since it is smaller than the sum of its proper divisors (12928928376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8165638896 is a wasteful number, since it uses less digits than its factorization.

8165638896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170117488 (or 170117482 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 60.

The square root of 8165638896 is about 90363.9247487624. The cubic root of 8165638896 is about 2013.7090574999.

The spelling of 8165638896 in words is "eight billion, one hundred sixty-five million, six hundred thirty-eight thousand, eight hundred ninety-six".