166045452 has 12 divisors (see below), whose sum is σ = 387439416. Its totient is φ = 55348480.

The previous prime is 166045423. The next prime is 166045459. The reversal of 166045452 is 254540661.

166045452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (166045459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6918549 + ... + 6918572.

It is an arithmetic number, because the mean of its divisors is an integer number (32286618).

Almost surely, 2^166045452 is an apocalyptic number.

166045452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166045452 is an abundant number, since it is smaller than the sum of its proper divisors (221393964).

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

166045452 is a wasteful number, since it uses less digits than its factorization.

166045452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13837128 (or 13837126 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 166045452 is about 12885.8624856856. The cubic root of 166045452 is about 549.6366216812.

The spelling of 166045452 in words is "one hundred sixty-six million, forty-five thousand, four hundred fifty-two".