165545230459392 has 180 divisors, whose sum is σ = 555778784475486. Its totient is φ = 47298637209600.

The previous prime is 165545230459177. The next prime is 165545230459397. The reversal of 165545230459392 is 293954032545561.

165545230459392 is a `hidden beast` number, since 1 + 6 + 5 + 5 + 4 + 5 + 2 + 30 + 4 + 593 + 9 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 164906279629056 + 638950830336 = 12841584^2 + 799344^2 .

It is a super-2 number, since 2×165545230459392² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (165545230459397) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 366362109 + ... + 366813692.

Almost surely, 2^{165545230459392} is an apocalyptic number.

165545230459392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

165545230459392 is an abundant number, since it is smaller than the sum of its proper divisors (390233554016094).

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

165545230459392 is an equidigital number, since it uses as much as digits as its factorization.

165545230459392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733175839 (or 733175813 counting only the distinct ones).

The product of its (nonzero) digits is 174960000, while the sum is 63.

The spelling of 165545230459392 in words is "one hundred sixty-five trillion, five hundred forty-five billion, two hundred thirty million, four hundred fifty-nine thousand, three hundred ninety-two".