6671566115741 has 2 divisors, whose sum is σ = 6671566115742. Its totient is φ = 6671566115740.

The previous prime is 6671566115719. The next prime is 6671566115779. The reversal of 6671566115741 is 1475116651766.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4051279302841 + 2620286812900 = 2012779^2 + 1618730^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6671566115741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6671562115741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3335783057870 + 3335783057871.

It is an arithmetic number, because the mean of its divisors is an integer number (3335783057871).

Almost surely, 2^{6671566115741} is an apocalyptic number.

It is an amenable number.

6671566115741 is a deficient number, since it is larger than the sum of its proper divisors (1).

6671566115741 is an equidigital number, since it uses as much as digits as its factorization.

6671566115741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6350400, while the sum is 56.

The spelling of 6671566115741 in words is "six trillion, six hundred seventy-one billion, five hundred sixty-six million, one hundred fifteen thousand, seven hundred forty-one".