13662161045 has 16 divisors (see below), whose sum is σ = 17658693360. Its totient is φ = 10087279104.

The previous prime is 13662161039. The next prime is 13662161047. The reversal of 13662161045 is 54016126631.

It can be written as a sum of positive squares in 8 ways, for example, as 74528689 + 13587632356 = 8633^2 + 116566^2 .

It is a cyclic number.

It is not a de Polignac number, because 13662161045 - 2²⁰ = 13661112469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13662160996 and 13662161014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13662161047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 475427 + ... + 503343.

It is an arithmetic number, because the mean of its divisors is an integer number (1103668335).

Almost surely, 2^13662161045 is an apocalyptic number.

It is an amenable number.

13662161045 is a deficient number, since it is larger than the sum of its proper divisors (3996532315).

13662161045 is a wasteful number, since it uses less digits than its factorization.

13662161045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35464.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 13662161045 its reverse (54016126631), we get a palindrome (67678287676).

The spelling of 13662161045 in words is "thirteen billion, six hundred sixty-two million, one hundred sixty-one thousand, forty-five".