199690992900 has 360 divisors, whose sum is σ = 752344971840. Its totient is φ = 44869282560.

The previous prime is 199690992887. The next prime is 199690992911. The reversal of 199690992900 is 9299096991.

199690992900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

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 119 ways as a sum of consecutive naturals, for example, 3315454 + ... + 3375146.

It is an arithmetic number, because the mean of its divisors is an integer number (2089847144).

Almost surely, 2^199690992900 is an apocalyptic number.

199690992900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199690992900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376172485920).

199690992900 is an abundant number, since it is smaller than the sum of its proper divisors (552653978940).

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

199690992900 is a wasteful number, since it uses less digits than its factorization.

199690992900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59785 (or 59769 counting only the distinct ones).

The product of its (nonzero) digits is 6377292, while the sum is 63.

The spelling of 199690992900 in words is "one hundred ninety-nine billion, six hundred ninety million, nine hundred ninety-two thousand, nine hundred".