2669613668 has 6 divisors (see below), whose sum is σ = 4671823926. Its totient is φ = 1334806832.

The previous prime is 2669613643. The next prime is 2669613733. The reversal of 2669613668 is 8663169662.

2669613668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2353414144 + 316199524 = 48512^2 + 17782^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333701705 + ... + 333701712.

It is an arithmetic number, because the mean of its divisors is an integer number (778637321).

Almost surely, 2^2669613668 is an apocalyptic number.

It is an amenable number.

2669613668 is a deficient number, since it is larger than the sum of its proper divisors (2002210258).

2669613668 is a wasteful number, since it uses less digits than its factorization.

2669613668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667403421 (or 667403419 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 53.

The square root of 2669613668 is about 51668.3042880256. The cubic root of 2669613668 is about 1387.2331947881.

The spelling of 2669613668 in words is "two billion, six hundred sixty-nine million, six hundred thirteen thousand, six hundred sixty-eight".