669650608 has 40 divisors (see below), whose sum is σ = 1434814416. Its totient is φ = 300211200.

The previous prime is 669650603. The next prime is 669650617. The reversal of 669650608 is 806056966.

669650608 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (669650603) 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, 13213 + ... + 38908.

Almost surely, 2^669650608 is an apocalyptic number.

It is an amenable number.

669650608 is an abundant number, since it is smaller than the sum of its proper divisors (765163808).

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

669650608 is a wasteful number, since it uses less digits than its factorization.

669650608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52213 (or 52207 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 669650608 is about 25877.6082356929. The cubic root of 669650608 is about 874.8818814161.

The spelling of 669650608 in words is "six hundred sixty-nine million, six hundred fifty thousand, six hundred eight".