15188968514801 has 2 divisors, whose sum is σ = 15188968514802. Its totient is φ = 15188968514800.

The previous prime is 15188968514719. The next prime is 15188968514857. The reversal of 15188968514801 is 10841586988151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9684544000000 + 5504424514801 = 3112000^2 + 2346151^2 .

It is a cyclic number.

It is not a de Polignac number, because 15188968514801 - 2¹⁸ = 15188968252657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15188968514701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7594484257400 + 7594484257401.

It is an arithmetic number, because the mean of its divisors is an integer number (7594484257401).

Almost surely, 2^{15188968514801} is an apocalyptic number.

It is an amenable number.

15188968514801 is a deficient number, since it is larger than the sum of its proper divisors (1).

15188968514801 is an equidigital number, since it uses as much as digits as its factorization.

15188968514801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22118400, while the sum is 65.

The spelling of 15188968514801 in words is "fifteen trillion, one hundred eighty-eight billion, nine hundred sixty-eight million, five hundred fourteen thousand, eight hundred one".