166230923 has 2 divisors, whose sum is σ = 166230924. Its totient is φ = 166230922.

The previous prime is 166230919. The next prime is 166231003. The reversal of 166230923 is 329032661.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 166230923 - 2² = 166230919 is a prime.

It is a super-2 number, since 2×166230923² = 55265439522863858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 166230923.

It is not a weakly prime, because it can be changed into another prime (166233923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83115461 + 83115462.

It is an arithmetic number, because the mean of its divisors is an integer number (83115462).

Almost surely, 2^166230923 is an apocalyptic number.

166230923 is a deficient number, since it is larger than the sum of its proper divisors (1).

166230923 is an equidigital number, since it uses as much as digits as its factorization.

166230923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 166230923 is about 12893.0571626748. The cubic root of 166230923 is about 549.8411916152.

The spelling of 166230923 in words is "one hundred sixty-six million, two hundred thirty thousand, nine hundred twenty-three".