166406552 has 32 divisors (see below), whose sum is σ = 337024800. Its totient is φ = 76571904.

The previous prime is 166406533. The next prime is 166406563. The reversal of 166406552 is 255604661.

166406552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166406552² = 55382281097057408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35108 + ... + 39564.

It is an arithmetic number, because the mean of its divisors is an integer number (10532025).

Almost surely, 2^166406552 is an apocalyptic number.

It is an amenable number.

166406552 is an abundant number, since it is smaller than the sum of its proper divisors (170618248).

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

166406552 is a wasteful number, since it uses less digits than its factorization.

166406552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835 (or 4831 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 166406552 is about 12899.8663558969. The cubic root of 166406552 is about 550.0347658465.

The spelling of 166406552 in words is "one hundred sixty-six million, four hundred six thousand, five hundred fifty-two".