165155750222499 has 24 divisors (see below), whose sum is σ = 240382177141392. Its totient is φ = 109262066434560.

The previous prime is 165155750222413. The next prime is 165155750222527. The reversal of 165155750222499 is 994222057551561.

165155750222499 is a `hidden beast` number, since 1 + 6 + 5 + 1 + 55 + 75 + 0 + 2 + 22 + 499 = 666.

It is not a de Polignac number, because 165155750222499 - 2⁴⁷ = 24418261867171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (165155750224499) 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 23 ways as a sum of consecutive naturals, for example, 105750999 + ... + 107301375.

It is an arithmetic number, because the mean of its divisors is an integer number (10015924047558).

Almost surely, 2^{165155750222499} is an apocalyptic number.

165155750222499 is a deficient number, since it is larger than the sum of its proper divisors (75226426918893).

165155750222499 is a wasteful number, since it uses less digits than its factorization.

165155750222499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640867 (or 1640864 counting only the distinct ones).

The product of its (nonzero) digits is 68040000, while the sum is 63.

The spelling of 165155750222499 in words is "one hundred sixty-five trillion, one hundred fifty-five billion, seven hundred fifty million, two hundred twenty-two thousand, four hundred ninety-nine".