14663088947581 has 2 divisors, whose sum is σ = 14663088947582. Its totient is φ = 14663088947580.

The previous prime is 14663088947539. The next prime is 14663088947593. The reversal of 14663088947581 is 18574988036641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13363659941956 + 1299429005625 = 3655634^2 + 1139925^2 .

It is a cyclic number.

It is not a de Polignac number, because 14663088947581 - 2³⁷ = 14525649994109 is a prime.

It is a super-2 number, since 2×14663088947581² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 14663088947581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14663088947281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7331544473790 + 7331544473791.

It is an arithmetic number, because the mean of its divisors is an integer number (7331544473791).

Almost surely, 2^{14663088947581} is an apocalyptic number.

It is an amenable number.

14663088947581 is a deficient number, since it is larger than the sum of its proper divisors (1).

14663088947581 is an equidigital number, since it uses as much as digits as its factorization.

14663088947581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 278691840, while the sum is 70.

The spelling of 14663088947581 in words is "fourteen trillion, six hundred sixty-three billion, eighty-eight million, nine hundred forty-seven thousand, five hundred eighty-one".