199046203902 has 320 divisors, whose sum is σ = 556033572864. Its totient is φ = 51822685440.

The previous prime is 199046203891. The next prime is 199046203933. The reversal of 199046203902 is 209302640991.

It is a happy number.

199046203902 is a `hidden beast` number, since 19 + 9 + 0 + 4 + 620 + 3 + 9 + 0 + 2 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 627905848 + ... + 627906164.

Almost surely, 2^199046203902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199046203902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278016786432).

199046203902 is an abundant number, since it is smaller than the sum of its proper divisors (356987368962).

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

199046203902 is a wasteful number, since it uses less digits than its factorization.

199046203902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 199046203902 in words is "one hundred ninety-nine billion, forty-six million, two hundred three thousand, nine hundred two".