6640411367 has 2 divisors, whose sum is σ = 6640411368. Its totient is φ = 6640411366.

The previous prime is 6640411363. The next prime is 6640411399. The reversal of 6640411367 is 7631140466.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6640411367 - 2² = 6640411363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6640411367.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6640411363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3320205683 + 3320205684.

It is an arithmetic number, because the mean of its divisors is an integer number (3320205684).

Almost surely, 2^6640411367 is an apocalyptic number.

6640411367 is a deficient number, since it is larger than the sum of its proper divisors (1).

6640411367 is an equidigital number, since it uses as much as digits as its factorization.

6640411367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 6640411367 is about 81488.7192622390. The cubic root of 6640411367 is about 1879.5980888808.

The spelling of 6640411367 in words is "six billion, six hundred forty million, four hundred eleven thousand, three hundred sixty-seven".