166745546 has 24 divisors (see below), whose sum is σ = 275955552. Its totient is φ = 74942000.

The previous prime is 166745521. The next prime is 166745573. The reversal of 166745546 is 645547661.

166745546 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×166745546² = 55608154221676232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 166745497 and 166745506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224051 + ... + 224793.

It is an arithmetic number, because the mean of its divisors is an integer number (11498148).

Almost surely, 2^166745546 is an apocalyptic number.

166745546 is a deficient number, since it is larger than the sum of its proper divisors (109210006).

166745546 is a wasteful number, since it uses less digits than its factorization.

166745546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 857 counting only the distinct ones).

The product of its digits is 604800, while the sum is 44.

The square root of 166745546 is about 12912.9991094246. Note that the first 3 decimals coincide. The cubic root of 166745546 is about 550.4080123965.

The spelling of 166745546 in words is "one hundred sixty-six million, seven hundred forty-five thousand, five hundred forty-six".