161797010179 has 16 divisors (see below), whose sum is σ = 201079551168. Its totient is φ = 126997604352.

The previous prime is 161797010161. The next prime is 161797010197. The reversal of 161797010179 is 971010797161.

It is an interprime number because it is at equal distance from previous prime (161797010161) and next prime (161797010197).

It is a cyclic number.

It is not a de Polignac number, because 161797010179 - 2¹⁵ = 161796977411 is a prime.

It is a super-2 number, since 2×161797010179² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161797010129) 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, 18369094 + ... + 18377899.

It is an arithmetic number, because the mean of its divisors is an integer number (12567471948).

Almost surely, 2^161797010179 is an apocalyptic number.

161797010179 is a deficient number, since it is larger than the sum of its proper divisors (39282540989).

161797010179 is a wasteful number, since it uses less digits than its factorization.

161797010179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36747054.

The product of its (nonzero) digits is 166698, while the sum is 49.

The spelling of 161797010179 in words is "one hundred sixty-one billion, seven hundred ninety-seven million, ten thousand, one hundred seventy-nine".