165574344042 has 12 divisors (see below), whose sum is σ = 358744412130. Its totient is φ = 55191448008.

The previous prime is 165574344017. The next prime is 165574344043. The reversal of 165574344042 is 240443475561.

165574344042 is a `hidden beast` number, since 1 + 6 + 5 + 574 + 34 + 4 + 0 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 163279838241 + 2294505801 = 404079^2 + 47901^2 .

It is not an unprimeable number, because it can be changed into a prime (165574344043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4599287317 + ... + 4599287352.

Almost surely, 2^165574344042 is an apocalyptic number.

165574344042 is an abundant number, since it is smaller than the sum of its proper divisors (193170068088).

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

165574344042 is a wasteful number, since it uses less digits than its factorization.

165574344042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9198574677 (or 9198574674 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 165574344042 in words is "one hundred sixty-five billion, five hundred seventy-four million, three hundred forty-four thousand, forty-two".