131092508666 has 16 divisors (see below), whose sum is σ = 225373948800. Its totient is φ = 56021520240.

The previous prime is 131092508653. The next prime is 131092508671. The reversal of 131092508666 is 666805290131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131092508666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13410230 + ... + 13420001.

It is an arithmetic number, because the mean of its divisors is an integer number (14085871800).

Almost surely, 2^131092508666 is an apocalyptic number.

131092508666 is a deficient number, since it is larger than the sum of its proper divisors (94281440134).

131092508666 is a wasteful number, since it uses less digits than its factorization.

131092508666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26830589.

The product of its (nonzero) digits is 466560, while the sum is 47.

Adding to 131092508666 its reverse (666805290131), we get a palindrome (797897798797).

The spelling of 131092508666 in words is "one hundred thirty-one billion, ninety-two million, five hundred eight thousand, six hundred sixty-six".