166085964 has 60 divisors (see below), whose sum is σ = 473662728. Its totient is φ = 50328000.

The previous prime is 166085963. The next prime is 166085977. The reversal of 166085964 is 469580661.

It is not an unprimeable number, because it can be changed into a prime (166085963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19737 + ... + 26864.

Almost surely, 2^166085964 is an apocalyptic number.

It is an amenable number.

166085964 is an abundant number, since it is smaller than the sum of its proper divisors (307576764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166085964 is a wasteful number, since it uses less digits than its factorization.

166085964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46628 (or 46617 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 166085964 is about 12887.4343451286. The cubic root of 166085964 is about 549.6813184151.

The spelling of 166085964 in words is "one hundred sixty-six million, eighty-five thousand, nine hundred sixty-four".