165971794060 has 48 divisors (see below), whose sum is σ = 356012772192. Its totient is φ = 64979366400.

The previous prime is 165971794007. The next prime is 165971794081. The reversal of 165971794060 is 60497179561.

It is a junction number, because it is equal to n+sod(n) for n = 165971793992 and 165971794010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242631 + ... + 625150.

It is an arithmetic number, because the mean of its divisors is an integer number (7416932754).

Almost surely, 2^165971794060 is an apocalyptic number.

165971794060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165971794060 is an abundant number, since it is smaller than the sum of its proper divisors (190040978132).

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

165971794060 is a wasteful number, since it uses less digits than its factorization.

165971794060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867994 (or 867992 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 165971794060 in words is "one hundred sixty-five billion, nine hundred seventy-one million, seven hundred ninety-four thousand, sixty".