669601322 has 24 divisors (see below), whose sum is σ = 1089459756. Its totient is φ = 308520576.

The previous prime is 669601313. The next prime is 669601403. The reversal of 669601322 is 223106966.

It can be written as a sum of positive squares in 6 ways, for example, as 323604121 + 345997201 = 17989^2 + 18601^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254558 + ... + 257174.

Almost surely, 2^669601322 is an apocalyptic number.

669601322 is a deficient number, since it is larger than the sum of its proper divisors (419858434).

669601322 is a wasteful number, since it uses less digits than its factorization.

669601322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402 (or 3389 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 669601322 is about 25876.6559276890. The cubic root of 669601322 is about 874.8604172447.

The spelling of 669601322 in words is "six hundred sixty-nine million, six hundred one thousand, three hundred twenty-two".