131661636700 has 54 divisors (see below), whose sum is σ = 314040235208. Its totient is φ = 47876954400.

The previous prime is 131661636649. The next prime is 131661636749. The reversal of 131661636700 is 7636166131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5428464 + ... + 5452663.

Almost surely, 2^131661636700 is an apocalyptic number.

131661636700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131661636700 is an abundant number, since it is smaller than the sum of its proper divisors (182378598508).

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

131661636700 is a wasteful number, since it uses less digits than its factorization.

131661636700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10881163 (or 10881145 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 131661636700 in words is "one hundred thirty-one billion, six hundred sixty-one million, six hundred thirty-six thousand, seven hundred".