11987165263 has 2 divisors, whose sum is σ = 11987165264. Its totient is φ = 11987165262.

The previous prime is 11987165249. The next prime is 11987165293. The reversal of 11987165263 is 36256178911.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11987165263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11987165293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5993582631 + 5993582632.

It is an arithmetic number, because the mean of its divisors is an integer number (5993582632).

Almost surely, 2^11987165263 is an apocalyptic number.

11987165263 is a deficient number, since it is larger than the sum of its proper divisors (1).

11987165263 is an equidigital number, since it uses as much as digits as its factorization.

11987165263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The spelling of 11987165263 in words is "eleven billion, nine hundred eighty-seven million, one hundred sixty-five thousand, two hundred sixty-three".