11143340511555 has 16 divisors (see below), whose sum is σ = 20376394078464. Its totient is φ = 5094098519520.

The previous prime is 11143340511521. The next prime is 11143340511643. The reversal of 11143340511555 is 55511504334111.

It is not a de Polignac number, because 11143340511555 - 2²³ = 11143332122947 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53063526141 + ... + 53063526350.

It is an arithmetic number, because the mean of its divisors is an integer number (1273524629904).

Almost surely, 2^{11143340511555} is an apocalyptic number.

11143340511555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11143340511555 is a deficient number, since it is larger than the sum of its proper divisors (9233053566909).

11143340511555 is a wasteful number, since it uses less digits than its factorization.

11143340511555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106127052506.

The product of its (nonzero) digits is 90000, while the sum is 39.

Adding to 11143340511555 its reverse (55511504334111), we get a palindrome (66654844845666).

The spelling of 11143340511555 in words is "eleven trillion, one hundred forty-three billion, three hundred forty million, five hundred eleven thousand, five hundred fifty-five".