13325521653 has 20 divisors (see below), whose sum is σ = 19928676768. Its totient is φ = 8873572680.

The previous prime is 13325521637. The next prime is 13325521687. The reversal of 13325521653 is 35612552331.

13325521653 is a `hidden beast` number, since 13 + 32 + 552 + 1 + 65 + 3 = 666.

13325521653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13325521653 - 2⁴ = 13325521637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13325521603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21633 + ... + 164678.

Almost surely, 2^13325521653 is an apocalyptic number.

It is an amenable number.

13325521653 is a deficient number, since it is larger than the sum of its proper divisors (6603155115).

13325521653 is an equidigital number, since it uses as much as digits as its factorization.

13325521653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187206 (or 187197 counting only the distinct ones).

The product of its digits is 81000, while the sum is 36.

The spelling of 13325521653 in words is "thirteen billion, three hundred twenty-five million, five hundred twenty-one thousand, six hundred fifty-three".