6606112261391 has 2 divisors, whose sum is σ = 6606112261392. Its totient is φ = 6606112261390.

The previous prime is 6606112261291. The next prime is 6606112261433. The reversal of 6606112261391 is 1931622116066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6606112261391 - 2²² = 6606108067087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6606112261291) 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, 3303056130695 + 3303056130696.

It is an arithmetic number, because the mean of its divisors is an integer number (3303056130696).

Almost surely, 2^{6606112261391} is an apocalyptic number.

6606112261391 is a deficient number, since it is larger than the sum of its proper divisors (1).

6606112261391 is an equidigital number, since it uses as much as digits as its factorization.

6606112261391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 6606112261391 in words is "six trillion, six hundred six billion, one hundred twelve million, two hundred sixty-one thousand, three hundred ninety-one".