166660546 has 16 divisors (see below), whose sum is σ = 270099648. Its totient is φ = 76669200.

The previous prime is 166660541. The next prime is 166660573. The reversal of 166660546 is 645066661.

166660546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 166660499 and 166660508.

It is not an unprimeable number, because it can be changed into a prime (166660541) 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, 2220 + ... + 18391.

It is an arithmetic number, because the mean of its divisors is an integer number (16881228).

Almost surely, 2^166660546 is an apocalyptic number.

166660546 is a deficient number, since it is larger than the sum of its proper divisors (103439102).

166660546 is a wasteful number, since it uses less digits than its factorization.

166660546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20937.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 166660546 is about 12909.7074327810. The cubic root of 166660546 is about 550.3144714013.

The spelling of 166660546 in words is "one hundred sixty-six million, six hundred sixty thousand, five hundred forty-six".