166265022 has 64 divisors (see below), whose sum is σ = 432635904. Its totient is φ = 41305440.

The previous prime is 166264979. The next prime is 166265027. The reversal of 166265022 is 220562661.

166265022 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 (166265027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2803 + ... + 18449.

It is an arithmetic number, because the mean of its divisors is an integer number (6759936).

Almost surely, 2^166265022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166265022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216317952).

166265022 is an abundant number, since it is smaller than the sum of its proper divisors (266370882).

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

166265022 is a wasteful number, since it uses less digits than its factorization.

166265022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 166265022 is about 12894.3794732434. The cubic root of 166265022 is about 549.8787854087.

The spelling of 166265022 in words is "one hundred sixty-six million, two hundred sixty-five thousand, twenty-two".