13163615053645 has 32 divisors (see below), whose sum is σ = 18438594278400. Its totient is φ = 8833692546816.

The previous prime is 13163615053643. The next prime is 13163615053657. The reversal of 13163615053645 is 54635051636131.

It is a cyclic number.

It is not a de Polignac number, because 13163615053645 - 2¹ = 13163615053643 is a prime.

It is a super-3 number, since 3×13163615053645³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163615053643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19856391 + ... + 20508619.

It is an arithmetic number, because the mean of its divisors is an integer number (576206071200).

Almost surely, 2^{13163615053645} is an apocalyptic number.

It is an amenable number.

13163615053645 is a deficient number, since it is larger than the sum of its proper divisors (5274979224755).

13163615053645 is a wasteful number, since it uses less digits than its factorization.

13163615053645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664557.

The product of its (nonzero) digits is 2916000, while the sum is 49.

Adding to 13163615053645 its reverse (54635051636131), we get a palindrome (67798666689776).

The spelling of 13163615053645 in words is "thirteen trillion, one hundred sixty-three billion, six hundred fifteen million, fifty-three thousand, six hundred forty-five".