668834027495 has 8 divisors (see below), whose sum is σ = 802696102560. Its totient is φ = 535003708960.

The previous prime is 668834027489. The next prime is 668834027503. The reversal of 668834027495 is 594720438866.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 668834027495 - 2⁶ = 668834027431 is a prime.

It is a congruent number.

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, 7892771 + ... + 7977060.

It is an arithmetic number, because the mean of its divisors is an integer number (100337012820).

Almost surely, 2^668834027495 is an apocalyptic number.

668834027495 is a deficient number, since it is larger than the sum of its proper divisors (133862075065).

668834027495 is a wasteful number, since it uses less digits than its factorization.

668834027495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15878265.

The product of its (nonzero) digits is 69672960, while the sum is 62.

The spelling of 668834027495 in words is "six hundred sixty-eight billion, eight hundred thirty-four million, twenty-seven thousand, four hundred ninety-five".