166132663 has 4 divisors (see below), whose sum is σ = 166993648. Its totient is φ = 165271680.

The previous prime is 166132643. The next prime is 166132667. The reversal of 166132663 is 366231661.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 166132663 - 2²⁵ = 132578231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166132667) 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, 430203 + ... + 430588.

It is an arithmetic number, because the mean of its divisors is an integer number (41748412).

Almost surely, 2^166132663 is an apocalyptic number.

166132663 is a deficient number, since it is larger than the sum of its proper divisors (860985).

166132663 is an equidigital number, since it uses as much as digits as its factorization.

166132663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860984.

The product of its digits is 23328, while the sum is 34.

The square root of 166132663 is about 12889.2460213932. The cubic root of 166132663 is about 549.7328322252.

The spelling of 166132663 in words is "one hundred sixty-six million, one hundred thirty-two thousand, six hundred sixty-three".