165240373575 has 24 divisors (see below), whose sum is σ = 289267856208. Its totient is φ = 82944186880.

The previous prime is 165240373559. The next prime is 165240373577. The reversal of 165240373575 is 575373042561.

It is not a de Polignac number, because 165240373575 - 2⁴ = 165240373559 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165240373577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64798872 + ... + 64801421.

It is an arithmetic number, because the mean of its divisors is an integer number (12052827342).

Almost surely, 2^165240373575 is an apocalyptic number.

165240373575 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

165240373575 is a deficient number, since it is larger than the sum of its proper divisors (124027482633).

165240373575 is a wasteful number, since it uses less digits than its factorization.

165240373575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129600323 (or 129600318 counting only the distinct ones).

The product of its (nonzero) digits is 2646000, while the sum is 48.

The spelling of 165240373575 in words is "one hundred sixty-five billion, two hundred forty million, three hundred seventy-three thousand, five hundred seventy-five".