11331287766671 has 2 divisors, whose sum is σ = 11331287766672. Its totient is φ = 11331287766670.

The previous prime is 11331287766611. The next prime is 11331287766703. The reversal of 11331287766671 is 17666778213311.

11331287766671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11331287766671 - 2¹⁴ = 11331287750287 is a prime.

It is a super-2 number, since 2×11331287766671² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11331287766671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331287766611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665643883335 + 5665643883336.

It is an arithmetic number, because the mean of its divisors is an integer number (5665643883336).

Almost surely, 2^{11331287766671} is an apocalyptic number.

11331287766671 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331287766671 is an equidigital number, since it uses as much as digits as its factorization.

11331287766671 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 59.

The spelling of 11331287766671 in words is "eleven trillion, three hundred thirty-one billion, two hundred eighty-seven million, seven hundred sixty-six thousand, six hundred seventy-one".