11312111440566 has 48 divisors (see below), whose sum is σ = 24520863510000. Its totient is φ = 3768967486464.

The previous prime is 11312111440549. The next prime is 11312111440573. The reversal of 11312111440566 is 66504411121311.

11312111440566 is a `hidden beast` number, since 1 + 1 + 31 + 2 + 11 + 14 + 40 + 566 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11312111440566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 542562910 + ... + 542583758.

It is an arithmetic number, because the mean of its divisors is an integer number (510851323125).

Almost surely, 2^{11312111440566} is an apocalyptic number.

11312111440566 is an abundant number, since it is smaller than the sum of its proper divisors (13208752069434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312111440566 is a wasteful number, since it uses less digits than its factorization.

11312111440566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33293 (or 33290 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

Adding to 11312111440566 its reverse (66504411121311), we get a palindrome (77816522561877).

The spelling of 11312111440566 in words is "eleven trillion, three hundred twelve billion, one hundred eleven million, four hundred forty thousand, five hundred sixty-six".