165620834992 has 10 divisors (see below), whose sum is σ = 320890367828. Its totient is φ = 82810417488.

The previous prime is 165620834933. The next prime is 165620835013. The reversal of 165620834992 is 299438026561.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5175651078 + ... + 5175651109.

Almost surely, 2^165620834992 is an apocalyptic number.

It is an amenable number.

165620834992 is a deficient number, since it is larger than the sum of its proper divisors (155269532836).

165620834992 is a wasteful number, since it uses less digits than its factorization.

165620834992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10351302195 (or 10351302189 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 55.

The spelling of 165620834992 in words is "one hundred sixty-five billion, six hundred twenty million, eight hundred thirty-four thousand, nine hundred ninety-two".