161869096177 has 16 divisors (see below), whose sum is σ = 166079520000. Its totient is φ = 157712252544.

The previous prime is 161869096171. The next prime is 161869096247. The reversal of 161869096177 is 771690968161.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161869096177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161869096171) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4050349 + ... + 4090117.

It is an arithmetic number, because the mean of its divisors is an integer number (10379970000).

Almost surely, 2^161869096177 is an apocalyptic number.

It is an amenable number.

161869096177 is a deficient number, since it is larger than the sum of its proper divisors (4210423823).

161869096177 is a wasteful number, since it uses less digits than its factorization.

161869096177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40440.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 161869096177 in words is "one hundred sixty-one billion, eight hundred sixty-nine million, ninety-six thousand, one hundred seventy-seven".