266163154646165 has 24 divisors (see below), whose sum is σ = 378044816398080. Its totient is φ = 176218364435904.

The previous prime is 266163154646131. The next prime is 266163154646201. The reversal of 266163154646165 is 561646451361662.

It is not a de Polignac number, because 266163154646165 - 2⁸ = 266163154645909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 266163154646098 and 266163154646107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4521172445 + ... + 4521231314.

It is an arithmetic number, because the mean of its divisors is an integer number (15751867349920).

Almost surely, 2^{266163154646165} is an apocalyptic number.

It is an amenable number.

266163154646165 is a deficient number, since it is larger than the sum of its proper divisors (111881661751915).

266163154646165 is an equidigital number, since it uses as much as digits as its factorization.

266163154646165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9042403829 (or 9042403800 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 62.

The spelling of 266163154646165 in words is "two hundred sixty-six trillion, one hundred sixty-three billion, one hundred fifty-four million, six hundred forty-six thousand, one hundred sixty-five".