669314331 has 24 divisors (see below), whose sum is σ = 1107824640. Its totient is φ = 381452976.

The previous prime is 669314323. The next prime is 669314351. The reversal of 669314331 is 133413966.

669314331 is a `hidden beast` number, since 6 + 6 + 9 + 314 + 331 = 666.

It is not a de Polignac number, because 669314331 - 2³ = 669314323 is a prime.

It is a super-2 number, since 2×669314331² = 895963347363955122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (669314351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10260 + ... + 37998.

It is an arithmetic number, because the mean of its divisors is an integer number (46159360).

Almost surely, 2^669314331 is an apocalyptic number.

669314331 is a deficient number, since it is larger than the sum of its proper divisors (438510309).

669314331 is a wasteful number, since it uses less digits than its factorization.

669314331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28135 (or 28132 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 669314331 is about 25871.1099684571. The cubic root of 669314331 is about 874.7354110473.

The spelling of 669314331 in words is "six hundred sixty-nine million, three hundred fourteen thousand, three hundred thirty-one".