166122631236155 has 16 divisors (see below), whose sum is σ = 224484775584768. Its totient is φ = 116919153948000.

The previous prime is 166122631236011. The next prime is 166122631236167. The reversal of 166122631236155 is 551632136221661.

It is not a de Polignac number, because 166122631236155 - 2²⁸ = 166122362800699 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 48716312441 + ... + 48716315850.

It is an arithmetic number, because the mean of its divisors is an integer number (14030298474048).

Almost surely, 2^{166122631236155} is an apocalyptic number.

166122631236155 is a deficient number, since it is larger than the sum of its proper divisors (58362144348613).

166122631236155 is a wasteful number, since it uses less digits than its factorization.

166122631236155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97432628338.

The product of its digits is 2332800, while the sum is 50.

The spelling of 166122631236155 in words is "one hundred sixty-six trillion, one hundred twenty-two billion, six hundred thirty-one million, two hundred thirty-six thousand, one hundred fifty-five".