165773009492 has 12 divisors (see below), whose sum is σ = 290106748596. Its totient is φ = 82885367040.

The previous prime is 165773009461. The next prime is 165773009527. The reversal of 165773009492 is 294900377561.

It can be written as a sum of positive squares in 2 ways, for example, as 164514604816 + 1258404676 = 405604^2 + 35474^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101642 + ... + 584702.

It is an arithmetic number, because the mean of its divisors is an integer number (24175562383).

Almost surely, 2^165773009492 is an apocalyptic number.

It is an amenable number.

165773009492 is a deficient number, since it is larger than the sum of its proper divisors (124333739104).

165773009492 is a wasteful number, since it uses less digits than its factorization.

165773009492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568858 (or 568856 counting only the distinct ones).

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 165773009492 in words is "one hundred sixty-five billion, seven hundred seventy-three million, nine thousand, four hundred ninety-two".