161911838300 has 36 divisors (see below), whose sum is σ = 369840729720. Its totient is φ = 61356064320.

The previous prime is 161911838279. The next prime is 161911838329. The reversal of 161911838300 is 3838119161.

161911838300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 42606479 + ... + 42610278.

Almost surely, 2^161911838300 is an apocalyptic number.

161911838300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161911838300 is an abundant number, since it is smaller than the sum of its proper divisors (207928891420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161911838300 is a wasteful number, since it uses less digits than its factorization.

161911838300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85216790 (or 85216783 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 41.

The spelling of 161911838300 in words is "one hundred sixty-one billion, nine hundred eleven million, eight hundred thirty-eight thousand, three hundred".