166045747 has 12 divisors (see below), whose sum is σ = 194297520. Its totient is φ = 139004208.

The previous prime is 166045741. The next prime is 166045753. The reversal of 166045747 is 747540661.

166045747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (166045741) and next prime (166045753).

It is not a de Polignac number, because 166045747 - 2³ = 166045739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166045741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6529 + ... + 19357.

It is an arithmetic number, because the mean of its divisors is an integer number (16191460).

Almost surely, 2^166045747 is an apocalyptic number.

166045747 is a deficient number, since it is larger than the sum of its proper divisors (28251773).

166045747 is an equidigital number, since it uses as much as digits as its factorization.

166045747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12922 (or 12879 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 166045747 is about 12885.8739323338. The cubic root of 166045747 is about 549.6369471799.

The spelling of 166045747 in words is "one hundred sixty-six million, forty-five thousand, seven hundred forty-seven".