669608120 has 32 divisors (see below), whose sum is σ = 1507690800. Its totient is φ = 267652608.

The previous prime is 669608119. The next prime is 669608123. The reversal of 669608120 is 21806966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669608123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59936 + ... + 70224.

Almost surely, 2^669608120 is an apocalyptic number.

It is an amenable number.

669608120 is an abundant number, since it is smaller than the sum of its proper divisors (838082680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669608120 is a wasteful number, since it uses less digits than its factorization.

669608120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11927 (or 11923 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 669608120 is about 25876.7872812681. The cubic root of 669608120 is about 874.8633778527.

The spelling of 669608120 in words is "six hundred sixty-nine million, six hundred eight thousand, one hundred twenty".