13544345105 has 16 divisors (see below), whose sum is σ = 16370802000. Its totient is φ = 10757160960.

The previous prime is 13544345083. The next prime is 13544345141. The reversal of 13544345105 is 50154344531.

It can be written as a sum of positive squares in 8 ways, for example, as 2318518801 + 11225826304 = 48151^2 + 105952^2 .

It is not a de Polignac number, because 13544345105 - 2¹⁸ = 13544082961 is a prime.

It is a super-2 number, since 2×13544345105² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1999925 + ... + 2006685.

It is an arithmetic number, because the mean of its divisors is an integer number (1023175125).

Almost surely, 2^13544345105 is an apocalyptic number.

It is an amenable number.

13544345105 is a deficient number, since it is larger than the sum of its proper divisors (2826456895).

13544345105 is a wasteful number, since it uses less digits than its factorization.

13544345105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9604.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 13544345105 its reverse (50154344531), we get a palindrome (63698689636).

The spelling of 13544345105 in words is "thirteen billion, five hundred forty-four million, three hundred forty-five thousand, one hundred five".