669136311 has 12 divisors (see below), whose sum is σ = 968151600. Its totient is φ = 445342560.

The previous prime is 669136301. The next prime is 669136331. The reversal of 669136311 is 113631966.

669136311 is a `hidden beast` number, since 6 + 6 + 9 + 13 + 631 + 1 = 666.

It is not a de Polignac number, because 669136311 - 2²² = 664942007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669136301) 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, 56670 + ... + 67451.

It is an arithmetic number, because the mean of its divisors is an integer number (80679300).

Almost surely, 2^669136311 is an apocalyptic number.

669136311 is a deficient number, since it is larger than the sum of its proper divisors (299015289).

669136311 is a wasteful number, since it uses less digits than its factorization.

669136311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124726 (or 124723 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 669136311 is about 25867.6692224097. The cubic root of 669136311 is about 874.6578519700.

The spelling of 669136311 in words is "six hundred sixty-nine million, one hundred thirty-six thousand, three hundred eleven".