131671144394766 has 40 divisors (see below), whose sum is σ = 295070174118720. Its totient is φ = 43886026284192.

The previous prime is 131671144394761. The next prime is 131671144394789. The reversal of 131671144394766 is 667493441176131.

131671144394766 is a `hidden beast` number, since 1 + 3 + 1 + 6 + 7 + 114 + 43 + 9 + 476 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131671144394761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38687911 + ... + 41953506.

It is an arithmetic number, because the mean of its divisors is an integer number (7376754352968).

Almost surely, 2^{131671144394766} is an apocalyptic number.

131671144394766 is an abundant number, since it is smaller than the sum of its proper divisors (163399029723954).

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

131671144394766 is a wasteful number, since it uses less digits than its factorization.

131671144394766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80651510 (or 80651501 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 131671144394766 in words is "one hundred thirty-one trillion, six hundred seventy-one billion, one hundred forty-four million, three hundred ninety-four thousand, seven hundred sixty-six".