2166226331023 has 2 divisors, whose sum is σ = 2166226331024. Its totient is φ = 2166226331022.

The previous prime is 2166226330993. The next prime is 2166226331063. The reversal of 2166226331023 is 3201336226612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2166226331023 - 2⁹ = 2166226330511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2166226331063) 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 as a sum of consecutive naturals, namely, 1083113165511 + 1083113165512.

It is an arithmetic number, because the mean of its divisors is an integer number (1083113165512).

Almost surely, 2^{2166226331023} is an apocalyptic number.

2166226331023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2166226331023 is an equidigital number, since it uses as much as digits as its factorization.

2166226331023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 2166226331023 in words is "two trillion, one hundred sixty-six billion, two hundred twenty-six million, three hundred thirty-one thousand, twenty-three".