131556257344 has 14 divisors (see below), whose sum is σ = 261056948294. Its totient is φ = 65778128640.

The previous prime is 131556257293. The next prime is 131556257381. The reversal of 131556257344 is 443752655131.

It can be written as a sum of positive squares in only one way, i.e., 125485977600 + 6070279744 = 354240^2 + 77912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131556257294 and 131556257303.

It is an unprimeable number.

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, 1027783197 + ... + 1027783324.

Almost surely, 2^131556257344 is an apocalyptic number.

It is an amenable number.

131556257344 is a deficient number, since it is larger than the sum of its proper divisors (129500690950).

131556257344 is an equidigital number, since it uses as much as digits as its factorization.

131556257344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055566533 (or 2055566523 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 46.

The spelling of 131556257344 in words is "one hundred thirty-one billion, five hundred fifty-six million, two hundred fifty-seven thousand, three hundred forty-four".