199974748160 has 512 divisors, whose sum is σ = 568713778560. Its totient is φ = 66689433600.

The previous prime is 199974748147. The next prime is 199974748229. The reversal of 199974748160 is 61847479991.

It is a tau number, because it is divible by the number of its divisors (512).

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, 1868922827 + ... + 1868922933.

Almost surely, 2^199974748160 is an apocalyptic number.

199974748160 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 199974748160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284356889280).

199974748160 is an abundant number, since it is smaller than the sum of its proper divisors (368739030400).

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

199974748160 is a wasteful number, since it uses less digits than its factorization.

199974748160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 203 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 65.

The spelling of 199974748160 in words is "one hundred ninety-nine billion, nine hundred seventy-four million, seven hundred forty-eight thousand, one hundred sixty".