166337371220 has 48 divisors (see below), whose sum is σ = 353036893440. Its totient is φ = 65825270784.

The previous prime is 166337371219. The next prime is 166337371223. The reversal of 166337371220 is 22173733661.

It is a super-3 number, since 3×166337371220³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166337371223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5959337 + ... + 5987183.

It is an arithmetic number, because the mean of its divisors is an integer number (7354935280).

Almost surely, 2^166337371220 is an apocalyptic number.

166337371220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

166337371220 is an abundant number, since it is smaller than the sum of its proper divisors (186699522220).

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

166337371220 is a wasteful number, since it uses less digits than its factorization.

166337371220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31032 (or 31030 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 41.

The spelling of 166337371220 in words is "one hundred sixty-six billion, three hundred thirty-seven million, three hundred seventy-one thousand, two hundred twenty".