79161815216 has 20 divisors (see below), whose sum is σ = 167319291624. Its totient is φ = 35982643200.

The previous prime is 79161815209. The next prime is 79161815279. The reversal of 79161815216 is 61251816197.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224891345 + ... + 224891696.

Almost surely, 2^79161815216 is an apocalyptic number.

It is an amenable number.

79161815216 is an abundant number, since it is smaller than the sum of its proper divisors (88157476408).

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

79161815216 is a wasteful number, since it uses less digits than its factorization.

79161815216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449783060 (or 449783054 counting only the distinct ones).

The product of its digits is 181440, while the sum is 47.

The spelling of 79161815216 in words is "seventy-nine billion, one hundred sixty-one million, eight hundred fifteen thousand, two hundred sixteen".