18446165075 has 12 divisors (see below), whose sum is σ = 24632725488. Its totient is φ = 13621783200.

The previous prime is 18446165063. The next prime is 18446165081. The reversal of 18446165075 is 57056164481.

It is not a de Polignac number, because 18446165075 - 2¹⁸ = 18445902931 is a prime.

It is a super-2 number, since 2×18446165075² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

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, 28378391 + ... + 28379040.

It is an arithmetic number, because the mean of its divisors is an integer number (2052727124).

Almost surely, 2^18446165075 is an apocalyptic number.

18446165075 is a deficient number, since it is larger than the sum of its proper divisors (6186560413).

18446165075 is a wasteful number, since it uses less digits than its factorization.

18446165075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56757454 (or 56757449 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 18446165075 in words is "eighteen billion, four hundred forty-six million, one hundred sixty-five thousand, seventy-five".