131701638213766 has 16 divisors (see below), whose sum is σ = 200802845630160. Its totient is φ = 64767483470880.

The previous prime is 131701638213721. The next prime is 131701638213779. The reversal of 131701638213766 is 667312836107131.

It is a super-2 number, since 2×131701638213766² (a number of 29 digits) contains 22 as substring.

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 in 7 ways as a sum of consecutive naturals, for example, 29702521 + ... + 33847348.

It is an arithmetic number, because the mean of its divisors is an integer number (12550177851885).

Almost surely, 2^{131701638213766} is an apocalyptic number.

131701638213766 is a deficient number, since it is larger than the sum of its proper divisors (69101207416394).

131701638213766 is a wasteful number, since it uses less digits than its factorization.

131701638213766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63566919.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 131701638213766 in words is "one hundred thirty-one trillion, seven hundred one billion, six hundred thirty-eight million, two hundred thirteen thousand, seven hundred sixty-six".