6666140599 has 8 divisors (see below), whose sum is σ = 6677008128. Its totient is φ = 6655284600.

The previous prime is 6666140581. The next prime is 6666140609. The reversal of 6666140599 is 9950416666.

6666140599 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6666140599 - 2⁵ = 6666140567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666140549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2834274 + ... + 2836624.

It is an arithmetic number, because the mean of its divisors is an integer number (834626016).

Almost surely, 2^6666140599 is an apocalyptic number.

6666140599 is a deficient number, since it is larger than the sum of its proper divisors (10867529).

6666140599 is a wasteful number, since it uses less digits than its factorization.

6666140599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765.

The product of its (nonzero) digits is 2099520, while the sum is 52.

The square root of 6666140599 is about 81646.4365358342. The cubic root of 6666140599 is about 1882.0225515971.

The spelling of 6666140599 in words is "six billion, six hundred sixty-six million, one hundred forty thousand, five hundred ninety-nine".