325623131640666 has 24 divisors (see below), whose sum is σ = 705521461893300. Its totient is φ = 108540324392256.

The previous prime is 325623131640619. The next prime is 325623131640671. The reversal of 325623131640666 is 666046131326523.

It can be written as a sum of positive squares in 2 ways, for example, as 302849477410041 + 22773654230625 = 17402571^2 + 4772175^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57162925 + ... + 62600688.

Almost surely, 2^{325623131640666} is an apocalyptic number.

325623131640666 is an abundant number, since it is smaller than the sum of its proper divisors (379898330252634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

325623131640666 is a wasteful number, since it uses less digits than its factorization.

325623131640666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119914670 (or 119914667 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 54.

The spelling of 325623131640666 in words is "three hundred twenty-five trillion, six hundred twenty-three billion, one hundred thirty-one million, six hundred forty thousand, six hundred sixty-six".