166742152 has 32 divisors (see below), whose sum is σ = 317157120. Its totient is φ = 82176640.

The previous prime is 166742131. The next prime is 166742153. The reversal of 166742152 is 251247661.

166742152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166742152² = 55605890507182208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166742153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182577 + ... + 183487.

It is an arithmetic number, because the mean of its divisors is an integer number (9911160).

Almost surely, 2^166742152 is an apocalyptic number.

It is an amenable number.

166742152 is a deficient number, since it is larger than the sum of its proper divisors (150414968).

166742152 is a wasteful number, since it uses less digits than its factorization.

166742152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221 (or 1217 counting only the distinct ones).

The product of its digits is 20160, while the sum is 34.

The square root of 166742152 is about 12912.8676907959. The cubic root of 166742152 is about 550.4042779689.

The spelling of 166742152 in words is "one hundred sixty-six million, seven hundred forty-two thousand, one hundred fifty-two".