79957851098161 has 16 divisors (see below), whose sum is σ = 83737097054208. Its totient is φ = 76278731400000.

The previous prime is 79957851098149. The next prime is 79957851098173. The reversal of 79957851098161 is 16189015875997.

It is an interprime number because it is at equal distance from previous prime (79957851098149) and next prime (79957851098173).

It is a cyclic number.

It is not a de Polignac number, because 79957851098161 - 2¹³ = 79957851089969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79957851098101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103480465 + ... + 104250286.

It is an arithmetic number, because the mean of its divisors is an integer number (5233568565888).

Almost surely, 2^{79957851098161} is an apocalyptic number.

It is an amenable number.

79957851098161 is a deficient number, since it is larger than the sum of its proper divisors (3779245956047).

79957851098161 is a wasteful number, since it uses less digits than its factorization.

79957851098161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207730992.

The product of its (nonzero) digits is 342921600, while the sum is 76.

The spelling of 79957851098161 in words is "seventy-nine trillion, nine hundred fifty-seven billion, eight hundred fifty-one million, ninety-eight thousand, one hundred sixty-one".