6640117327 has 4 divisors (see below), whose sum is σ = 6869086920. Its totient is φ = 6411147736.

The previous prime is 6640117247. The next prime is 6640117339. The reversal of 6640117327 is 7237110466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6640117327 - 2¹⁵ = 6640084559 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 (6640117357) 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, 114484753 + ... + 114484810.

It is an arithmetic number, because the mean of its divisors is an integer number (1717271730).

Almost surely, 2^6640117327 is an apocalyptic number.

6640117327 is a deficient number, since it is larger than the sum of its proper divisors (228969593).

6640117327 is a wasteful number, since it uses less digits than its factorization.

6640117327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228969592.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 6640117327 is about 81486.9150661626. The cubic root of 6640117327 is about 1879.5703453597.

The spelling of 6640117327 in words is "six billion, six hundred forty million, one hundred seventeen thousand, three hundred twenty-seven".