199990575408 has 80 divisors (see below), whose sum is σ = 557745100640. Its totient is φ = 61385029632.

The previous prime is 199990575377. The next prime is 199990575437. The reversal of 199990575408 is 804575099991.

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, 136591 + ... + 647022.

It is an arithmetic number, because the mean of its divisors is an integer number (6971813758).

Almost surely, 2^199990575408 is an apocalyptic number.

It is an amenable number.

199990575408 is an abundant number, since it is smaller than the sum of its proper divisors (357754525232).

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

199990575408 is a wasteful number, since it uses less digits than its factorization.

199990575408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784046 (or 784040 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 66.

The spelling of 199990575408 in words is "one hundred ninety-nine billion, nine hundred ninety million, five hundred seventy-five thousand, four hundred eight".