13540120055 has 16 divisors (see below), whose sum is σ = 20257426944. Its totient is φ = 8440594080.

The previous prime is 13540120051. The next prime is 13540120057. The reversal of 13540120055 is 55002104531.

It is not a de Polignac number, because 13540120055 - 2² = 13540120051 is a prime.

It is a super-2 number, since 2×13540120055² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540120051) 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, 17584187 + ... + 17584956.

It is an arithmetic number, because the mean of its divisors is an integer number (1266089184).

Almost surely, 2^13540120055 is an apocalyptic number.

13540120055 is a deficient number, since it is larger than the sum of its proper divisors (6717306889).

13540120055 is a wasteful number, since it uses less digits than its factorization.

13540120055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35169166.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 13540120055 its reverse (55002104531), we get a palindrome (68542224586).

The spelling of 13540120055 in words is "thirteen billion, five hundred forty million, one hundred twenty thousand, fifty-five".