6669827140 has 12 divisors (see below), whose sum is σ = 14006637036. Its totient is φ = 2667930848.

The previous prime is 6669827111. The next prime is 6669827149. The reversal of 6669827140 is 417289666.

It can be written as a sum of positive squares in 2 ways, for example, as 1446585156 + 5223241984 = 38034^2 + 72272^2 .

It is not an unprimeable number, because it can be changed into a prime (6669827149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166745659 + ... + 166745698.

It is an arithmetic number, because the mean of its divisors is an integer number (1167219753).

Almost surely, 2^6669827140 is an apocalyptic number.

It is an amenable number.

6669827140 is an abundant number, since it is smaller than the sum of its proper divisors (7336809896).

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

6669827140 is a wasteful number, since it uses less digits than its factorization.

6669827140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333491366 (or 333491364 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The square root of 6669827140 is about 81669.0096670702. The cubic root of 6669827140 is about 1882.3694227038.

The spelling of 6669827140 in words is "six billion, six hundred sixty-nine million, eight hundred twenty-seven thousand, one hundred forty".