6668812710 has 48 divisors (see below), whose sum is σ = 19815902496. Its totient is φ = 1524299904.

The previous prime is 6668812699. The next prime is 6668812741. The reversal of 6668812710 is 172188666.

It is a happy number.

It is a super-2 number, since 2×6668812710² = 88946125922115088200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 5292079 + ... + 5293338.

It is an arithmetic number, because the mean of its divisors is an integer number (412831302).

Almost surely, 2^6668812710 is an apocalyptic number.

6668812710 is an abundant number, since it is smaller than the sum of its proper divisors (13147089786).

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

6668812710 is a wasteful number, since it uses less digits than its factorization.

6668812710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10585437 (or 10585434 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 6668812710 is about 81662.7988131683. The cubic root of 6668812710 is about 1882.2739865058.

The spelling of 6668812710 in words is "six billion, six hundred sixty-eight million, eight hundred twelve thousand, seven hundred ten".