131563169291648 has 64 divisors (see below), whose sum is σ = 269052043790400. Its totient is φ = 64059194953728.

The previous prime is 131563169291599. The next prime is 131563169291663. The reversal of 131563169291648 is 846192961365131.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88375511 + ... + 89851862.

It is an arithmetic number, because the mean of its divisors is an integer number (4203938184225).

Almost surely, 2^{131563169291648} is an apocalyptic number.

It is an amenable number.

131563169291648 is an abundant number, since it is smaller than the sum of its proper divisors (137488874498752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131563169291648 is an equidigital number, since it uses as much as digits as its factorization.

131563169291648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178227539 (or 178227527 counting only the distinct ones).

The product of its digits is 50388480, while the sum is 65.

The spelling of 131563169291648 in words is "one hundred thirty-one trillion, five hundred sixty-three billion, one hundred sixty-nine million, two hundred ninety-one thousand, six hundred forty-eight".