668296480 has 48 divisors (see below), whose sum is σ = 1604756664. Its totient is φ = 262932480.

The previous prime is 668296477. The next prime is 668296501. The reversal of 668296480 is 84692866.

It can be written as a sum of positive squares in 4 ways, for example, as 199487376 + 468809104 = 14124^2 + 21652^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24477 + ... + 43996.

Almost surely, 2^668296480 is an apocalyptic number.

It is an amenable number.

668296480 is an abundant number, since it is smaller than the sum of its proper divisors (936460184).

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

668296480 is a wasteful number, since it uses less digits than its factorization.

668296480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68549 (or 68541 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 668296480 is about 25851.4309081722. The cubic root of 668296480 is about 874.2917719464.

The spelling of 668296480 in words is "six hundred sixty-eight million, two hundred ninety-six thousand, four hundred eighty".