668702485 has 16 divisors (see below), whose sum is σ = 878739840. Its totient is φ = 484469440.

The previous prime is 668702477. The next prime is 668702501. The reversal of 668702485 is 584207866.

It is not a de Polignac number, because 668702485 - 2³ = 668702477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8650 + ... + 37579.

It is an arithmetic number, because the mean of its divisors is an integer number (54921240).

Almost surely, 2^668702485 is an apocalyptic number.

It is an amenable number.

668702485 is a deficient number, since it is larger than the sum of its proper divisors (210037355).

668702485 is a wasteful number, since it uses less digits than its factorization.

668702485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46508.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 668702485 is about 25859.2823759670. The cubic root of 668702485 is about 874.4687866808.

The spelling of 668702485 in words is "six hundred sixty-eight million, seven hundred two thousand, four hundred eighty-five".