115556655511 has 24 divisors (see below), whose sum is σ = 130648662144. Its totient is φ = 101359134240.

The previous prime is 115556655497. The next prime is 115556655517.

It is a happy number.

115556655511 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 115556655511 - 2¹¹ = 115556653463 is a prime.

It is a super-2 number, since 2×115556655511² (a number of 23 digits) contains 22 as substring.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115556655517) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17083216 + ... + 17089978.

It is an arithmetic number, because the mean of its divisors is an integer number (5443694256).

Almost surely, 2^115556655511 is an apocalyptic number.

115556655511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115556655511 is a deficient number, since it is larger than the sum of its proper divisors (15092006633).

115556655511 is a wasteful number, since it uses less digits than its factorization.

115556655511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8679 (or 8650 counting only the distinct ones).

The product of its digits is 562500, while the sum is 46.

The spelling of 115556655511 in words is "one hundred fifteen billion, five hundred fifty-six million, six hundred fifty-five thousand, five hundred eleven".