6641012611 has 2 divisors, whose sum is σ = 6641012612. Its totient is φ = 6641012610.

The previous prime is 6641012561. The next prime is 6641012621. The reversal of 6641012611 is 1162101466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6641012611 - 2¹⁵ = 6640979843 is a prime.

It is a super-2 number, since 2×6641012611² = 88206096998922074642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6641012611.

It is not a weakly prime, because it can be changed into another prime (6641012621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3320506305 + 3320506306.

It is an arithmetic number, because the mean of its divisors is an integer number (3320506306).

Almost surely, 2^6641012611 is an apocalyptic number.

6641012611 is a deficient number, since it is larger than the sum of its proper divisors (1).

6641012611 is an equidigital number, since it uses as much as digits as its factorization.

6641012611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 6641012611 is about 81492.4083028597. The cubic root of 6641012611 is about 1879.6548154351.

The spelling of 6641012611 in words is "six billion, six hundred forty-one million, twelve thousand, six hundred eleven".