199644107364 has 72 divisors (see below), whose sum is σ = 543733374912. Its totient is φ = 61399823040.

The previous prime is 199644107339. The next prime is 199644107387. The reversal of 199644107364 is 463701446991.

199644107364 is a `hidden beast` number, since 19 + 96 + 4 + 410 + 73 + 64 = 666.

199644107364 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×199644107364³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 199644107364.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 897217 + ... + 1097399.

Almost surely, 2^199644107364 is an apocalyptic number.

It is an amenable number.

199644107364 is an abundant number, since it is smaller than the sum of its proper divisors (344089267548).

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

199644107364 is a wasteful number, since it uses less digits than its factorization.

199644107364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202337 (or 202332 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 54.

The spelling of 199644107364 in words is "one hundred ninety-nine billion, six hundred forty-four million, one hundred seven thousand, three hundred sixty-four".