165407217496 has 16 divisors (see below), whose sum is σ = 323622817200. Its totient is φ = 79107799584.

The previous prime is 165407217461. The next prime is 165407217509. The reversal of 165407217496 is 694712704561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449475951 + ... + 449476318.

It is an arithmetic number, because the mean of its divisors is an integer number (20226426075).

Almost surely, 2^165407217496 is an apocalyptic number.

It is an amenable number.

165407217496 is a deficient number, since it is larger than the sum of its proper divisors (158215599704).

165407217496 is a wasteful number, since it uses less digits than its factorization.

165407217496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 898952298 (or 898952294 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 52.

The spelling of 165407217496 in words is "one hundred sixty-five billion, four hundred seven million, two hundred seventeen thousand, four hundred ninety-six".