11550254666511 has 16 divisors (see below), whose sum is σ = 16888330487808. Its totient is φ = 6963504316800.

The previous prime is 11550254666497. The next prime is 11550254666527. The reversal of 11550254666511 is 11566645205511.

It is not a de Polignac number, because 11550254666511 - 2¹¹ = 11550254664463 is a prime.

It is a super-2 number, since 2×11550254666511² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550254666011) 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, 916244266 + ... + 916256871.

It is an arithmetic number, because the mean of its divisors is an integer number (1055520655488).

Almost surely, 2^{11550254666511} is an apocalyptic number.

11550254666511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11550254666511 is a deficient number, since it is larger than the sum of its proper divisors (5338075821297).

11550254666511 is a wasteful number, since it uses less digits than its factorization.

11550254666511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832501342.

The product of its (nonzero) digits is 1080000, while the sum is 48.

The spelling of 11550254666511 in words is "eleven trillion, five hundred fifty billion, two hundred fifty-four million, six hundred sixty-six thousand, five hundred eleven".