161888762892 has 24 divisors (see below), whose sum is σ = 386953629552. Its totient is φ = 52646752000.

The previous prime is 161888762887. The next prime is 161888762921. The reversal of 161888762892 is 298267888161.

161888762892 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 164520609 + ... + 164521592.

It is an arithmetic number, because the mean of its divisors is an integer number (16123067898).

Almost surely, 2^161888762892 is an apocalyptic number.

161888762892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161888762892 is an abundant number, since it is smaller than the sum of its proper divisors (225064866660).

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

161888762892 is a wasteful number, since it uses less digits than its factorization.

161888762892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329042249 (or 329042247 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 66.

The spelling of 161888762892 in words is "one hundred sixty-one billion, eight hundred eighty-eight million, seven hundred sixty-two thousand, eight hundred ninety-two".