199795168956 has 24 divisors (see below), whose sum is σ = 467687735424. Its totient is φ = 66384245680.

The previous prime is 199795168931. The next prime is 199795168973. The reversal of 199795168956 is 659861597991.

199795168956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×199795168956² (a number of 23 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 26764110 + ... + 26771573.

It is an arithmetic number, because the mean of its divisors is an integer number (19486988976).

Almost surely, 2^199795168956 is an apocalyptic number.

It is an amenable number.

199795168956 is an abundant number, since it is smaller than the sum of its proper divisors (267892566468).

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

199795168956 is a wasteful number, since it uses less digits than its factorization.

199795168956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53536001 (or 53535999 counting only the distinct ones).

The product of its digits is 330674400, while the sum is 75.

The spelling of 199795168956 in words is "one hundred ninety-nine billion, seven hundred ninety-five million, one hundred sixty-eight thousand, nine hundred fifty-six".