13223113655625 has 30 divisors (see below), whose sum is σ = 23867426311586. Its totient is φ = 7052327280000.

The previous prime is 13223113655611. The next prime is 13223113655627. The reversal of 13223113655625 is 52655631132231.

13223113655625 is a `hidden beast` number, since 1 + 3 + 2 + 2 + 3 + 1 + 13 + 6 + 5 + 5 + 625 = 666.

13223113655625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 2471410373184 + 10751703282441 = 1572072^2 + 3278979^2 .

It is not a de Polignac number, because 13223113655625 - 2¹⁷ = 13223113524553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13223113655627) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1175382256 + ... + 1175393505.

Almost surely, 2^{13223113655625} is an apocalyptic number.

13223113655625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13223113655625 is a deficient number, since it is larger than the sum of its proper divisors (10644312655961).

13223113655625 is an equidigital number, since it uses as much as digits as its factorization.

13223113655625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350775787 (or 2350775769 counting only the distinct ones).

The product of its digits is 972000, while the sum is 45.

Adding to 13223113655625 its reverse (52655631132231), we get a palindrome (65878744787856).

The spelling of 13223113655625 in words is "thirteen trillion, two hundred twenty-three billion, one hundred thirteen million, six hundred fifty-five thousand, six hundred twenty-five".