1131666661311 has 8 divisors (see below), whose sum is σ = 1514760045744. Its totient is φ = 751508858880.

The previous prime is 1131666661297. The next prime is 1131666661339.

1131666661311 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131666661311 - 2²¹ = 1131664564159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131666661711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 733894600 + ... + 733896141.

It is an arithmetic number, because the mean of its divisors is an integer number (189345005718).

Almost surely, 2^{1131666661311} is an apocalyptic number.

1131666661311 is a deficient number, since it is larger than the sum of its proper divisors (383093384433).

1131666661311 is a wasteful number, since it uses less digits than its factorization.

1131666661311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1467791001.

The product of its digits is 69984, while the sum is 42.

The spelling of 1131666661311 in words is "one trillion, one hundred thirty-one billion, six hundred sixty-six million, six hundred sixty-one thousand, three hundred eleven".