669343372 has 6 divisors (see below), whose sum is σ = 1171350908. Its totient is φ = 334671684.

The previous prime is 669343349. The next prime is 669343373. The reversal of 669343372 is 273343966.

It is not an unprimeable number, because it can be changed into a prime (669343373) 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 as a sum of consecutive naturals, namely, 83667918 + ... + 83667925.

Almost surely, 2^669343372 is an apocalyptic number.

It is an amenable number.

669343372 is a deficient number, since it is larger than the sum of its proper divisors (502007536).

669343372 is a wasteful number, since it uses less digits than its factorization.

669343372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167335847 (or 167335845 counting only the distinct ones).

The product of its digits is 489888, while the sum is 43.

The square root of 669343372 is about 25871.6712254930. The cubic root of 669343372 is about 874.7480622151.

The spelling of 669343372 in words is "six hundred sixty-nine million, three hundred forty-three thousand, three hundred seventy-two".