165255230043 has 12 divisors (see below), whose sum is σ = 238737539040. Its totient is φ = 110153750256.

The previous prime is 165255229973. The next prime is 165255230083. The reversal of 165255230043 is 340032552561.

165255230043 is a `hidden beast` number, since 1 + 65 + 2 + 552 + 3 + 0 + 0 + 43 = 666.

It is not a de Polignac number, because 165255230043 - 2¹⁰ = 165255229019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165255230083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1302963 + ... + 1424156.

It is an arithmetic number, because the mean of its divisors is an integer number (19894794920).

Almost surely, 2^165255230043 is an apocalyptic number.

165255230043 is a deficient number, since it is larger than the sum of its proper divisors (73482308997).

165255230043 is a wasteful number, since it uses less digits than its factorization.

165255230043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733858 (or 2733855 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 165255230043 in words is "one hundred sixty-five billion, two hundred fifty-five million, two hundred thirty thousand, forty-three".