166542052 has 12 divisors (see below), whose sum is σ = 291559996. Its totient is φ = 83239200.

The previous prime is 166542043. The next prime is 166542067. The reversal of 166542052 is 250245661.

It can be written as a sum of positive squares in 2 ways, for example, as 51494976 + 115047076 = 7176^2 + 10726^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6898 + ... + 19510.

Almost surely, 2^166542052 is an apocalyptic number.

It is an amenable number.

166542052 is a deficient number, since it is larger than the sum of its proper divisors (125017944).

166542052 is a wasteful number, since it uses less digits than its factorization.

166542052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15918 (or 15916 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 166542052 is about 12905.1172795911. The cubic root of 166542052 is about 550.1840177637.

The spelling of 166542052 in words is "one hundred sixty-six million, five hundred forty-two thousand, fifty-two".