11242866631681 has 16 divisors (see below), whose sum is σ = 11646357319168. Its totient is φ = 10841975712000.

The previous prime is 11242866631553. The next prime is 11242866631687. The reversal of 11242866631681 is 18613666824211.

It is not a de Polignac number, because 11242866631681 - 2⁷ = 11242866631553 is a prime.

It is a super-2 number, since 2×11242866631681² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11242866631687) 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, 13482370 + ... + 14291956.

It is an arithmetic number, because the mean of its divisors is an integer number (727897332448).

Almost surely, 2^{11242866631681} is an apocalyptic number.

It is an amenable number.

11242866631681 is a deficient number, since it is larger than the sum of its proper divisors (403490687487).

11242866631681 is a wasteful number, since it uses less digits than its factorization.

11242866631681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811192.

The product of its digits is 3981312, while the sum is 55.

The spelling of 11242866631681 in words is "eleven trillion, two hundred forty-two billion, eight hundred sixty-six million, six hundred thirty-one thousand, six hundred eighty-one".