166849546 has 16 divisors (see below), whose sum is σ = 258984000. Its totient is φ = 80565408.

The previous prime is 166849523. The next prime is 166849547. The reversal of 166849546 is 645948661.

166849546 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 2×166849546² = 55677542000812232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166849546.

It is not an unprimeable number, because it can be changed into a prime (166849547) 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, 3246 + ... + 18553.

It is an arithmetic number, because the mean of its divisors is an integer number (16186500).

Almost surely, 2^166849546 is an apocalyptic number.

166849546 is a deficient number, since it is larger than the sum of its proper divisors (92134454).

166849546 is a wasteful number, since it uses less digits than its factorization.

166849546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21933.

The product of its digits is 1244160, while the sum is 49.

The square root of 166849546 is about 12917.0254315767. The cubic root of 166849546 is about 550.5224193236.

The spelling of 166849546 in words is "one hundred sixty-six million, eight hundred forty-nine thousand, five hundred forty-six".