199199370240 has 528 divisors, whose sum is σ = 747635406336. Its totient is φ = 48748953600.

The previous prime is 199199370233. The next prime is 199199370257. The reversal of 199199370240 is 42073991991.

It is a happy number.

199199370240 is a `hidden beast` number, since 19 + 9 + 19 + 9 + 370 + 240 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 114415770 + ... + 114417510.

Almost surely, 2^199199370240 is an apocalyptic number.

199199370240 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 199199370240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373817703168).

199199370240 is an abundant number, since it is smaller than the sum of its proper divisors (548436036096).

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

199199370240 is a wasteful number, since it uses less digits than its factorization.

199199370240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976 (or 1955 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 54.

The spelling of 199199370240 in words is "one hundred ninety-nine billion, one hundred ninety-nine million, three hundred seventy thousand, two hundred forty".