6866660000 has 60 divisors (see below), whose sum is σ = 16893062802. Its totient is φ = 2746656000.

The previous prime is 6866659999. The next prime is 6866660063. The reversal of 6866660000 is 666686.

It can be written as a sum of positive squares in 5 ways, for example, as 706921744 + 6159738256 = 26588^2 + 78484^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 151667 + ... + 191666.

Almost surely, 2^6866660000 is an apocalyptic number.

It is an amenable number.

6866660000 is an abundant number, since it is smaller than the sum of its proper divisors (10026402802).

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

6866660000 is an equidigital number, since it uses as much as digits as its factorization.

6866660000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343363 (or 343340 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 6866660000 is about 82865.3124051313. The cubic root of 6866660000 is about 1900.7070314177.

The spelling of 6866660000 in words is "six billion, eight hundred sixty-six million, six hundred sixty thousand".