166422065031233 has 4 divisors (see below), whose sum is σ = 181551343670448. Its totient is φ = 151292786392020.

The previous prime is 166422065031139. The next prime is 166422065031253. The reversal of 166422065031233 is 332130560224661.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 166422065031233 - 2²⁸ = 166421796595777 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (166422065031253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7564639319591 + ... + 7564639319612.

It is an arithmetic number, because the mean of its divisors is an integer number (45387835917612).

Almost surely, 2^{166422065031233} is an apocalyptic number.

It is an amenable number.

166422065031233 is a deficient number, since it is larger than the sum of its proper divisors (15129278639215).

166422065031233 is a wasteful number, since it uses less digits than its factorization.

166422065031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15129278639214.

The product of its (nonzero) digits is 933120, while the sum is 44.

The spelling of 166422065031233 in words is "one hundred sixty-six trillion, four hundred twenty-two billion, sixty-five million, thirty-one thousand, two hundred thirty-three".