131640818396 has 6 divisors (see below), whose sum is σ = 230371432200. Its totient is φ = 65820409196.

The previous prime is 131640818381. The next prime is 131640818417. The reversal of 131640818396 is 693818046131.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16455102296 + ... + 16455102303.

It is an arithmetic number, because the mean of its divisors is an integer number (38395238700).

Almost surely, 2^131640818396 is an apocalyptic number.

It is an amenable number.

131640818396 is a deficient number, since it is larger than the sum of its proper divisors (98730613804).

131640818396 is a wasteful number, since it uses less digits than its factorization.

131640818396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32910204603 (or 32910204601 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 131640818396 in words is "one hundred thirty-one billion, six hundred forty million, eight hundred eighteen thousand, three hundred ninety-six".