195149988025344 has 220 divisors, whose sum is σ = 635733839830848. Its totient is φ = 59136359731200.

The previous prime is 195149988025331. The next prime is 195149988025367. The reversal of 195149988025344 is 443520889941591.

195149988025344 is a `hidden beast` number, since 1 + 9 + 5 + 1 + 4 + 9 + 9 + 8 + 80 + 2 + 534 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 106032712 + ... + 107857479.

Almost surely, 2^{195149988025344} is an apocalyptic number.

It is an amenable number.

195149988025344 is an abundant number, since it is smaller than the sum of its proper divisors (440583851805504).

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

195149988025344 is a wasteful number, since it uses less digits than its factorization.

195149988025344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213890234 (or 213890207 counting only the distinct ones).

The product of its (nonzero) digits is 447897600, while the sum is 72.

The spelling of 195149988025344 in words is "one hundred ninety-five trillion, one hundred forty-nine billion, nine hundred eighty-eight million, twenty-five thousand, three hundred forty-four".