166063427 has 4 divisors (see below), whose sum is σ = 173283600. Its totient is φ = 158843256.

The previous prime is 166063421. The next prime is 166063459. The reversal of 166063427 is 724360661.

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 166063427 - 2⁸ = 166063171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166063421) 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, 3610052 + ... + 3610097.

It is an arithmetic number, because the mean of its divisors is an integer number (43320900).

Almost surely, 2^166063427 is an apocalyptic number.

166063427 is a deficient number, since it is larger than the sum of its proper divisors (7220173).

166063427 is an equidigital number, since it uses as much as digits as its factorization.

166063427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220172.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 166063427 is about 12886.5599366161. The cubic root of 166063427 is about 549.6564543268.

It can be divided in two parts, 1660634 and 27, that added together give a palindrome (1660661).

The spelling of 166063427 in words is "one hundred sixty-six million, sixty-three thousand, four hundred twenty-seven".