13115105541545 has 32 divisors (see below), whose sum is σ = 18576407586816. Its totient is φ = 8698531968000.

The previous prime is 13115105541523. The next prime is 13115105541583. The reversal of 13115105541545 is 54514550151131.

It is not a de Polignac number, because 13115105541545 - 2⁶ = 13115105541481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1116704 + ... + 5241873.

It is an arithmetic number, because the mean of its divisors is an integer number (580512737088).

Almost surely, 2^{13115105541545} is an apocalyptic number.

It is an amenable number.

13115105541545 is a deficient number, since it is larger than the sum of its proper divisors (5461302045271).

13115105541545 is a wasteful number, since it uses less digits than its factorization.

13115105541545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6360521.

The product of its (nonzero) digits is 150000, while the sum is 41.

Adding to 13115105541545 its reverse (54514550151131), we get a palindrome (67629655692676).

The spelling of 13115105541545 in words is "thirteen trillion, one hundred fifteen billion, one hundred five million, five hundred forty-one thousand, five hundred forty-five".