11253645513 has 24 divisors (see below), whose sum is σ = 18305054976. Its totient is φ = 6600376800.

The previous prime is 11253645493. The next prime is 11253645517. The reversal of 11253645513 is 31554635211.

11253645513 is a `hidden beast` number, since 1 + 1 + 2 + 5 + 3 + 645 + 5 + 1 + 3 = 666.

It is not a de Polignac number, because 11253645513 - 2⁹ = 11253645001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11253645517) 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, 1830370 + ... + 1836507.

It is an arithmetic number, because the mean of its divisors is an integer number (762710624).

Almost surely, 2^11253645513 is an apocalyptic number.

It is an amenable number.

11253645513 is a deficient number, since it is larger than the sum of its proper divisors (7051409463).

11253645513 is a wasteful number, since it uses less digits than its factorization.

11253645513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666925 (or 3666922 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The spelling of 11253645513 in words is "eleven billion, two hundred fifty-three million, six hundred forty-five thousand, five hundred thirteen".