166022250 has 64 divisors (see below), whose sum is σ = 417021696. Its totient is φ = 43992000.

The previous prime is 166022237. The next prime is 166022281. The reversal of 166022250 is 52220661.

166022250 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 166022250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 135139 + ... + 136361.

It is an arithmetic number, because the mean of its divisors is an integer number (6515964).

Almost surely, 2^166022250 is an apocalyptic number.

166022250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 166022250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208510848).

166022250 is an abundant number, since it is smaller than the sum of its proper divisors (250999446).

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

166022250 is a wasteful number, since it uses less digits than its factorization.

166022250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424 (or 1414 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 166022250 is about 12884.9621652530. The cubic root of 166022250 is about 549.6110197295.

The spelling of 166022250 in words is "one hundred sixty-six million, twenty-two thousand, two hundred fifty".