161876094842 has 64 divisors (see below), whose sum is σ = 320628326400. Its totient is φ = 59341766400.

The previous prime is 161876094829. The next prime is 161876094847. The reversal of 161876094842 is 248490678161.

It is a happy number.

161876094842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (161876094847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12641159 + ... + 12653957.

It is an arithmetic number, because the mean of its divisors is an integer number (5009817600).

Almost surely, 2^161876094842 is an apocalyptic number.

161876094842 is the 328508-th pentagonal number.

161876094842 is a deficient number, since it is larger than the sum of its proper divisors (158752231558).

161876094842 is a wasteful number, since it uses less digits than its factorization.

161876094842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17667.

The product of its (nonzero) digits is 4644864, while the sum is 56.

The spelling of 161876094842 in words is "one hundred sixty-one billion, eight hundred seventy-six million, ninety-four thousand, eight hundred forty-two".