195664298942 has 24 divisors (see below), whose sum is σ = 341436938040. Its totient is φ = 83850552240.

The previous prime is 195664298927. The next prime is 195664299013. The reversal of 195664298942 is 249892466591.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1636784 + ... + 1752252.

It is an arithmetic number, because the mean of its divisors is an integer number (14226539085).

Almost surely, 2^195664298942 is an apocalyptic number.

195664298942 is a deficient number, since it is larger than the sum of its proper divisors (145772639098).

195664298942 is a wasteful number, since it uses less digits than its factorization.

195664298942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132776 (or 132769 counting only the distinct ones).

The product of its digits is 67184640, while the sum is 65.

The spelling of 195664298942 in words is "one hundred ninety-five billion, six hundred sixty-four million, two hundred ninety-eight thousand, nine hundred forty-two".