131577913866 has 16 divisors (see below), whose sum is σ = 300749517504. Its totient is φ = 37593689664.

The previous prime is 131577913843. The next prime is 131577913867. The reversal of 131577913866 is 668319775131.

It is not an unprimeable number, because it can be changed into a prime (131577913867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566403695 + ... + 1566403778.

It is an arithmetic number, because the mean of its divisors is an integer number (18796844844).

Almost surely, 2^131577913866 is an apocalyptic number.

131577913866 is an abundant number, since it is smaller than the sum of its proper divisors (169171603638).

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

131577913866 is a wasteful number, since it uses less digits than its factorization.

131577913866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132807485.

The product of its digits is 5715360, while the sum is 57.

The spelling of 131577913866 in words is "one hundred thirty-one billion, five hundred seventy-seven million, nine hundred thirteen thousand, eight hundred sixty-six".