166535044 has 48 divisors (see below), whose sum is σ = 325987200. Its totient is φ = 73946880.

The previous prime is 166535041. The next prime is 166535051. The reversal of 166535044 is 440535661.

It is not an unprimeable number, because it can be changed into a prime (166535041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158232 + ... + 159280.

It is an arithmetic number, because the mean of its divisors is an integer number (6791400).

Almost surely, 2^166535044 is an apocalyptic number.

It is an amenable number.

166535044 is a deficient number, since it is larger than the sum of its proper divisors (159452156).

166535044 is a wasteful number, since it uses less digits than its factorization.

166535044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180 (or 1178 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 166535044 is about 12904.8457565366. The cubic root of 166535044 is about 550.1763005063.

The spelling of 166535044 in words is "one hundred sixty-six million, five hundred thirty-five thousand, forty-four".