11166154511243 has 16 divisors (see below), whose sum is σ = 11785404026880. Its totient is φ = 10550064796704.

The previous prime is 11166154511203. The next prime is 11166154511261. The reversal of 11166154511243 is 34211545166111.

11166154511243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11166154511243 - 2¹⁶ = 11166154445707 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11166154511243.

It is not an unprimeable number, because it can be changed into a prime (11166154511203) 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, 114731480 + ... + 114828762.

It is an arithmetic number, because the mean of its divisors is an integer number (736587751680).

Almost surely, 2^{11166154511243} is an apocalyptic number.

11166154511243 is a deficient number, since it is larger than the sum of its proper divisors (619249515637).

11166154511243 is a wasteful number, since it uses less digits than its factorization.

11166154511243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113458.

The product of its digits is 86400, while the sum is 41.

Adding to 11166154511243 its reverse (34211545166111), we get a palindrome (45377699677354).

The spelling of 11166154511243 in words is "eleven trillion, one hundred sixty-six billion, one hundred fifty-four million, five hundred eleven thousand, two hundred forty-three".