199995993708 has 288 divisors, whose sum is σ = 594625167360. Its totient is φ = 51964053120.

The previous prime is 199995993697. The next prime is 199995993713. The reversal of 199995993708 is 807399599991.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 43981891 + ... + 43986437.

It is an arithmetic number, because the mean of its divisors is an integer number (2064670720).

Almost surely, 2^199995993708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199995993708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (297312583680).

199995993708 is an abundant number, since it is smaller than the sum of its proper divisors (394629173652).

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

199995993708 is a wasteful number, since it uses less digits than its factorization.

199995993708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4745 (or 4736 counting only the distinct ones).

The product of its (nonzero) digits is 446410440, while the sum is 78.

The spelling of 199995993708 in words is "one hundred ninety-nine billion, nine hundred ninety-five million, nine hundred ninety-three thousand, seven hundred eight".