13663003577 has 2 divisors, whose sum is σ = 13663003578. Its totient is φ = 13663003576.

The previous prime is 13663003489. The next prime is 13663003597. The reversal of 13663003577 is 77530036631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13594627216 + 68376361 = 116596^2 + 8269^2 .

It is a cyclic number.

It is not a de Polignac number, because 13663003577 - 2²⁰ = 13661955001 is a prime.

It is a super-2 number, since 2×13663003577² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13663003597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6831501788 + 6831501789.

It is an arithmetic number, because the mean of its divisors is an integer number (6831501789).

Almost surely, 2^13663003577 is an apocalyptic number.

It is an amenable number.

13663003577 is a deficient number, since it is larger than the sum of its proper divisors (1).

13663003577 is an equidigital number, since it uses as much as digits as its factorization.

13663003577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 238140, while the sum is 41.

The spelling of 13663003577 in words is "thirteen billion, six hundred sixty-three million, three thousand, five hundred seventy-seven".