166494044 has 12 divisors (see below), whose sum is σ = 291459168. Its totient is φ = 83220000.

The previous prime is 166494037. The next prime is 166494049. The reversal of 166494044 is 440494661.

It is a junction number, because it is equal to n+sod(n) for n = 166493989 and 166494007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166494049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14624 + ... + 23384.

It is an arithmetic number, because the mean of its divisors is an integer number (24288264).

Almost surely, 2^166494044 is an apocalyptic number.

It is an amenable number.

166494044 is a deficient number, since it is larger than the sum of its proper divisors (124965124).

166494044 is a wasteful number, since it uses less digits than its factorization.

166494044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13516 (or 13514 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 166494044 is about 12903.2571081878. The cubic root of 166494044 is about 550.1311466872.

The spelling of 166494044 in words is "one hundred sixty-six million, four hundred ninety-four thousand, forty-four".