166632265 has 8 divisors (see below), whose sum is σ = 203731848. Its totient is φ = 130790400.

The previous prime is 166632259. The next prime is 166632269. The reversal of 166632265 is 562236661.

It can be written as a sum of positive squares in 4 ways, for example, as 840889 + 165791376 = 917^2 + 12876^2 .

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

It is not a de Polignac number, because 166632265 - 2⁵ = 166632233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166632269) 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, 314136 + ... + 314665.

It is an arithmetic number, because the mean of its divisors is an integer number (25466481).

Almost surely, 2^166632265 is an apocalyptic number.

It is an amenable number.

166632265 is a deficient number, since it is larger than the sum of its proper divisors (37099583).

166632265 is an equidigital number, since it uses as much as digits as its factorization.

166632265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628859.

The product of its digits is 77760, while the sum is 37.

The square root of 166632265 is about 12908.6120477765. The cubic root of 166632265 is about 550.2833416101.

The spelling of 166632265 in words is "one hundred sixty-six million, six hundred thirty-two thousand, two hundred sixty-five".