166064331 has 8 divisors (see below), whose sum is σ = 221500224. Its totient is φ = 110669000.

The previous prime is 166064329. The next prime is 166064333. The reversal of 166064331 is 133460661.

It is an interprime number because it is at equal distance from previous prime (166064329) and next prime (166064333).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166064331 - 2¹ = 166064329 is a prime.

It is a super-3 number, since 3×166064331³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (166064333) 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, 1240 + ... + 18266.

It is an arithmetic number, because the mean of its divisors is an integer number (27687528).

Almost surely, 2^166064331 is an apocalyptic number.

166064331 is a deficient number, since it is larger than the sum of its proper divisors (55435893).

166064331 is a wasteful number, since it uses less digits than its factorization.

166064331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20281.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 166064331 is about 12886.5950118718. The cubic root of 166064331 is about 549.6574517138.

The spelling of 166064331 in words is "one hundred sixty-six million, sixty-four thousand, three hundred thirty-one".