669424966 has 24 divisors (see below), whose sum is σ = 1169434800. Its totient is φ = 286563312.

The previous prime is 669424883. The next prime is 669424969.

669424966 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669424969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92860 + ... + 99808.

It is an arithmetic number, because the mean of its divisors is an integer number (48726450).

Almost surely, 2^669424966 is an apocalyptic number.

669424966 is a deficient number, since it is larger than the sum of its proper divisors (500009834).

669424966 is a wasteful number, since it uses less digits than its factorization.

669424966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7948 (or 7941 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 52.

The square root of 669424966 is about 25873.2480759568. The cubic root of 669424966 is about 874.7836051548.

The spelling of 669424966 in words is "six hundred sixty-nine million, four hundred twenty-four thousand, nine hundred sixty-six".