165091350572 has 36 divisors (see below), whose sum is σ = 308098983864. Its totient is φ = 77387612160.

The previous prime is 165091350559. The next prime is 165091350581. The reversal of 165091350572 is 275053190561.

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, 19247 + ... + 574937.

Almost surely, 2^165091350572 is an apocalyptic number.

It is an amenable number.

165091350572 is a deficient number, since it is larger than the sum of its proper divisors (143007633292).

165091350572 is a wasteful number, since it uses less digits than its factorization.

165091350572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555986 (or 555967 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 44.

The spelling of 165091350572 in words is "one hundred sixty-five billion, ninety-one million, three hundred fifty thousand, five hundred seventy-two".