199529011968 has 288 divisors, whose sum is σ = 660581816832. Its totient is φ = 52528742400.

The previous prime is 199529011943. The next prime is 199529011987. The reversal of 199529011968 is 869110925991.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1813573 + ... + 1920443.

It is an arithmetic number, because the mean of its divisors is an integer number (2293686864).

Almost surely, 2^199529011968 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 199529011968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330290908416).

199529011968 is an abundant number, since it is smaller than the sum of its proper divisors (461052804864).

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

199529011968 is a wasteful number, since it uses less digits than its factorization.

199529011968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106931 (or 106917 counting only the distinct ones).

The product of its (nonzero) digits is 3149280, while the sum is 60.

The spelling of 199529011968 in words is "one hundred ninety-nine billion, five hundred twenty-nine million, eleven thousand, nine hundred sixty-eight".