13155016045 has 4 divisors (see below), whose sum is σ = 15786019260. Its totient is φ = 10524012832.

The previous prime is 13155016033. The next prime is 13155016087. The reversal of 13155016045 is 54061055131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54061055131 = 167 ⋅323718893.

It can be written as a sum of positive squares in 2 ways, for example, as 4301523396 + 8853492649 = 65586^2 + 94093^2 .

It is a cyclic number.

It is not a de Polignac number, because 13155016045 - 2²³ = 13146627437 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 13155015998 and 13155016016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315501600 + ... + 1315501609.

It is an arithmetic number, because the mean of its divisors is an integer number (3946504815).

Almost surely, 2^13155016045 is an apocalyptic number.

It is an amenable number.

13155016045 is a deficient number, since it is larger than the sum of its proper divisors (2631003215).

13155016045 is an equidigital number, since it uses as much as digits as its factorization.

13155016045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2631003214.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 13155016045 in words is "thirteen billion, one hundred fifty-five million, sixteen thousand, forty-five".