11681554214767 has 2 divisors, whose sum is σ = 11681554214768. Its totient is φ = 11681554214766.

The previous prime is 11681554214711. The next prime is 11681554214791. The reversal of 11681554214767 is 76741245518611.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11681554214767 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11682554214767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5840777107383 + 5840777107384.

It is an arithmetic number, because the mean of its divisors is an integer number (5840777107384).

Almost surely, 2^{11681554214767} is an apocalyptic number.

11681554214767 is a deficient number, since it is larger than the sum of its proper divisors (1).

11681554214767 is an equidigital number, since it uses as much as digits as its factorization.

11681554214767 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11289600, while the sum is 58.

The spelling of 11681554214767 in words is "eleven trillion, six hundred eighty-one billion, five hundred fifty-four million, two hundred fourteen thousand, seven hundred sixty-seven".