166626426265063 has 8 divisors (see below), whose sum is σ = 169624042756560. Its totient is φ = 163634591099520.

The previous prime is 166626426265051. The next prime is 166626426265087. The reversal of 166626426265063 is 360562624626661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166626426265063 - 2⁴⁵ = 131442054176231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166626426264992 and 166626426265010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166626426262063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1445273328 + ... + 1445388613.

It is an arithmetic number, because the mean of its divisors is an integer number (21203005344570).

Almost surely, 2^{166626426265063} is an apocalyptic number.

166626426265063 is a deficient number, since it is larger than the sum of its proper divisors (2997616491497).

166626426265063 is an equidigital number, since it uses as much as digits as its factorization.

166626426265063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890662977.

The product of its (nonzero) digits is 134369280, while the sum is 61.

The spelling of 166626426265063 in words is "one hundred sixty-six trillion, six hundred twenty-six billion, four hundred twenty-six million, two hundred sixty-five thousand, sixty-three".