668034682525 has 24 divisors (see below), whose sum is σ = 946735694720. Its totient is φ = 458063933760.

The previous prime is 668034682519. The next prime is 668034682537. The reversal of 668034682525 is 525286430866.

It is a happy number.

It is not a de Polignac number, because 668034682525 - 2²⁷ = 667900464797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6287392 + ... + 6392758.

Almost surely, 2^668034682525 is an apocalyptic number.

It is an amenable number.

668034682525 is a deficient number, since it is larger than the sum of its proper divisors (278701012195).

668034682525 is a wasteful number, since it uses less digits than its factorization.

668034682525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141613 (or 141608 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 55.

The spelling of 668034682525 in words is "six hundred sixty-eight billion, thirty-four million, six hundred eighty-two thousand, five hundred twenty-five".