131826511166 has 36 divisors (see below), whose sum is σ = 236297090232. Its totient is φ = 54027872712.

The previous prime is 131826511163. The next prime is 131826511171. The reversal of 131826511166 is 661115628131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131826511163) 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 17 ways as a sum of consecutive naturals, for example, 31243805 + ... + 31248023.

It is an arithmetic number, because the mean of its divisors is an integer number (6563808062).

Almost surely, 2^131826511166 is an apocalyptic number.

131826511166 is a deficient number, since it is larger than the sum of its proper divisors (104470579066).

131826511166 is an frugal number, since it uses more digits than its factorization.

131826511166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8493 (or 4251 counting only the distinct ones).

The product of its digits is 51840, while the sum is 41.

The spelling of 131826511166 in words is "one hundred thirty-one billion, eight hundred twenty-six million, five hundred eleven thousand, one hundred sixty-six".