199881162042 has 32 divisors (see below), whose sum is σ = 405825768000. Its totient is φ = 65616955008.

The previous prime is 199881162037. The next prime is 199881162067. The reversal of 199881162042 is 240261188991.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1691134 + ... + 1805462.

It is an arithmetic number, because the mean of its divisors is an integer number (12682055250).

Almost surely, 2^199881162042 is an apocalyptic number.

199881162042 is an abundant number, since it is smaller than the sum of its proper divisors (205944605958).

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

199881162042 is a wasteful number, since it uses less digits than its factorization.

199881162042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118750.

The product of its (nonzero) digits is 497664, while the sum is 51.

The spelling of 199881162042 in words is "one hundred ninety-nine billion, eight hundred eighty-one million, one hundred sixty-two thousand, forty-two".