131563360856 has 8 divisors (see below), whose sum is σ = 246681301620. Its totient is φ = 65781680424.

The previous prime is 131563360853. The next prime is 131563360871. The reversal of 131563360856 is 658063365131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 131563360856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131563360853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8222710046 + ... + 8222710061.

Almost surely, 2^131563360856 is an apocalyptic number.

It is an amenable number.

131563360856 is a deficient number, since it is larger than the sum of its proper divisors (115117940764).

131563360856 is a wasteful number, since it uses less digits than its factorization.

131563360856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16445420113 (or 16445420109 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 131563360856 in words is "one hundred thirty-one billion, five hundred sixty-three million, three hundred sixty thousand, eight hundred fifty-six".