166317064 has 8 divisors (see below), whose sum is σ = 311844510. Its totient is φ = 83158528.

The previous prime is 166317061. The next prime is 166317079. The reversal of 166317064 is 460713661.

166317064 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 140612164 + 25704900 = 11858^2 + 5070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×166317064² = 55322731555160192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (166317061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10394809 + ... + 10394824.

Almost surely, 2^166317064 is an apocalyptic number.

It is an amenable number.

166317064 is a deficient number, since it is larger than the sum of its proper divisors (145527446).

166317064 is a wasteful number, since it uses less digits than its factorization.

166317064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20789639 (or 20789635 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 166317064 is about 12896.3973263854. The cubic root of 166317064 is about 549.9361512659.

The spelling of 166317064 in words is "one hundred sixty-six million, three hundred seventeen thousand, sixty-four".