6091626661 has 2 divisors, whose sum is σ = 6091626662. Its totient is φ = 6091626660.

The previous prime is 6091626649. The next prime is 6091626703. The reversal of 6091626661 is 1666261906.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6032628900 + 58997761 = 77670^2 + 7681^2 .

It is a cyclic number.

It is not a de Polignac number, because 6091626661 - 2²⁹ = 5554755749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6091626641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3045813330 + 3045813331.

It is an arithmetic number, because the mean of its divisors is an integer number (3045813331).

Almost surely, 2^6091626661 is an apocalyptic number.

It is an amenable number.

6091626661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6091626661 is an equidigital number, since it uses as much as digits as its factorization.

6091626661 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 43.

The square root of 6091626661 is about 78048.8735408782. The cubic root of 6091626661 is about 1826.3237195424.

The spelling of 6091626661 in words is "six billion, ninety-one million, six hundred twenty-six thousand, six hundred sixty-one".