131551939781116 has 12 divisors (see below), whose sum is σ = 230217050677320. Its totient is φ = 65775639587600.

The previous prime is 131551939781107. The next prime is 131551939781161. The reversal of 131551939781116 is 611187939155131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81678535 + ... + 83273566.

It is an arithmetic number, because the mean of its divisors is an integer number (19184754223110).

Almost surely, 2^{131551939781116} is an apocalyptic number.

It is an amenable number.

131551939781116 is a deficient number, since it is larger than the sum of its proper divisors (98665110896204).

131551939781116 is a wasteful number, since it uses less digits than its factorization.

131551939781116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165151484 (or 165151482 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 61.

The spelling of 131551939781116 in words is "one hundred thirty-one trillion, five hundred fifty-one billion, nine hundred thirty-nine million, seven hundred eighty-one thousand, one hundred sixteen".