131662531664 has 20 divisors (see below), whose sum is σ = 255500447520. Its totient is φ = 65726932320.

The previous prime is 131662531657. The next prime is 131662531673. The reversal of 131662531664 is 466135266131.

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 3 ways as a sum of consecutive naturals, for example, 6510434 + ... + 6530625.

It is an arithmetic number, because the mean of its divisors is an integer number (12775022376).

Almost surely, 2^131662531664 is an apocalyptic number.

It is an amenable number.

131662531664 is a deficient number, since it is larger than the sum of its proper divisors (123837915856).

131662531664 is a wasteful number, since it uses less digits than its factorization.

131662531664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041698 (or 13041692 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

Adding to 131662531664 its reverse (466135266131), we get a palindrome (597797797795).

The spelling of 131662531664 in words is "one hundred thirty-one billion, six hundred sixty-two million, five hundred thirty-one thousand, six hundred sixty-four".