13663115253 has 24 divisors (see below), whose sum is σ = 20053837440. Its totient is φ = 8962386720.

The previous prime is 13663115239. The next prime is 13663115267. The reversal of 13663115253 is 35251136631.

13663115253 is a `hidden beast` number, since 1 + 3 + 6 + 631 + 15 + 2 + 5 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (13663115239) and next prime (13663115267).

It is not a de Polignac number, because 13663115253 - 2⁶ = 13663115189 is a prime.

It is a super-2 number, since 2×13663115253² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13663114253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 300163 + ... + 342671.

It is an arithmetic number, because the mean of its divisors is an integer number (835576560).

Almost surely, 2^13663115253 is an apocalyptic number.

It is an amenable number.

13663115253 is a deficient number, since it is larger than the sum of its proper divisors (6390722187).

13663115253 is a wasteful number, since it uses less digits than its factorization.

13663115253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43089 (or 43086 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The spelling of 13663115253 in words is "thirteen billion, six hundred sixty-three million, one hundred fifteen thousand, two hundred fifty-three".