166226470305 has 192 divisors, whose sum is σ = 346081455360. Its totient is φ = 67508453376.

The previous prime is 166226470303. The next prime is 166226470331. The reversal of 166226470305 is 503074622661.

It is not a de Polignac number, because 166226470305 - 2¹ = 166226470303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166226470303) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 74306647 + ... + 74308883.

It is an arithmetic number, because the mean of its divisors is an integer number (1802507580).

Almost surely, 2^166226470305 is an apocalyptic number.

166226470305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166226470305 is an abundant number, since it is smaller than the sum of its proper divisors (179854985055).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166226470305 is a wasteful number, since it uses less digits than its factorization.

166226470305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2608 (or 2601 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 166226470305 in words is "one hundred sixty-six billion, two hundred twenty-six million, four hundred seventy thousand, three hundred five".