166612546 has 12 divisors (see below), whose sum is σ = 265485618. Its totient is φ = 78405632.

The previous prime is 166612513. The next prime is 166612559. The reversal of 166612546 is 645216661.

166612546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 157377025 + 9235521 = 12545^2 + 3039^2 .

166612546 is a modest number, since divided by 12546 gives 1666 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 143551 + ... + 144706.

Almost surely, 2^166612546 is an apocalyptic number.

166612546 is a deficient number, since it is larger than the sum of its proper divisors (98873072).

166612546 is a wasteful number, since it uses less digits than its factorization.

166612546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288293 (or 288276 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 166612546 is about 12907.8482327613. The cubic root of 166612546 is about 550.2616341989.

The spelling of 166612546 in words is "one hundred sixty-six million, six hundred twelve thousand, five hundred forty-six".