166870187022 has 64 divisors (see below), whose sum is σ = 416660396544. Its totient is φ = 43283687040.

The previous prime is 166870186997. The next prime is 166870187027. The reversal of 166870187022 is 220781078661.

166870187022 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166870187027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92268 + ... + 585024.

It is an arithmetic number, because the mean of its divisors is an integer number (6510318696).

Almost surely, 2^166870187022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166870187022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208330198272).

166870187022 is an abundant number, since it is smaller than the sum of its proper divisors (249790209522).

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

166870187022 is a wasteful number, since it uses less digits than its factorization.

166870187022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493513.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 166870187022 in words is "one hundred sixty-six billion, eight hundred seventy million, one hundred eighty-seven thousand, twenty-two".