8116613972 has 24 divisors (see below), whose sum is σ = 14258025600. Its totient is φ = 4042918656.

The previous prime is 8116613969. The next prime is 8116613987. The reversal of 8116613972 is 2793166118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572548 + ... + 1577700.

It is an arithmetic number, because the mean of its divisors is an integer number (594084400).

Almost surely, 2^8116613972 is an apocalyptic number.

It is an amenable number.

8116613972 is a deficient number, since it is larger than the sum of its proper divisors (6141411628).

8116613972 is a wasteful number, since it uses less digits than its factorization.

8116613972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6575 (or 6573 counting only the distinct ones).

The product of its digits is 108864, while the sum is 44.

The square root of 8116613972 is about 90092.2525636916. The cubic root of 8116613972 is about 2009.6709915851.

The spelling of 8116613972 in words is "eight billion, one hundred sixteen million, six hundred thirteen thousand, nine hundred seventy-two".