199996091100 has 108 divisors (see below), whose sum is σ = 675097955896. Its totient is φ = 49229804160.

The previous prime is 199996091069. The next prime is 199996091101. The reversal of 199996091100 is 1190699991.

199996091100 is a `hidden beast` number, since 19 + 9 + 9 + 9 + 609 + 1 + 10 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199996091101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 8535142 + ... + 8558541.

Almost surely, 2^199996091100 is an apocalyptic number.

199996091100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199996091100 is an abundant number, since it is smaller than the sum of its proper divisors (475101864796).

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

199996091100 is a wasteful number, since it uses less digits than its factorization.

199996091100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17093716 (or 17093706 counting only the distinct ones).

The product of its (nonzero) digits is 354294, while the sum is 54.

The spelling of 199996091100 in words is "one hundred ninety-nine billion, nine hundred ninety-six million, ninety-one thousand, one hundred".