79168514161 has 9 divisors (see below), whose sum is σ = 87023339193. Its totient is φ = 71968562820.

The previous prime is 79168514149. The next prime is 79168514167. The reversal of 79168514161 is 16141586197.

The square root of 79168514161 is 281369.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 79168514161 - 2⁹ = 79168513649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79168514167) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3082270 + ... + 3107848.

Almost surely, 2^79168514161 is an apocalyptic number.

79168514161 is the 281369-th square number.

79168514161 is the 140685-th centered octagonal number.

It is an amenable number.

79168514161 is a deficient number, since it is larger than the sum of its proper divisors (7854825032).

79168514161 is an frugal number, since it uses more digits than its factorization.

79168514161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51180 (or 25590 counting only the distinct ones).

The product of its digits is 362880, while the sum is 49.

Multiplying 79168514161 by its sum of digits (49), we get a square (3879257193889 = 1969583²).

The spelling of 79168514161 in words is "seventy-nine billion, one hundred sixty-eight million, five hundred fourteen thousand, one hundred sixty-one".