131445366256 has 40 divisors (see below), whose sum is σ = 269779389264. Its totient is φ = 61828408320.

The previous prime is 131445366253. The next prime is 131445366271. The reversal of 131445366256 is 652663544131.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131445366253) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 492751 + ... + 711121.

Almost surely, 2^131445366256 is an apocalyptic number.

131445366256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131445366256 is an abundant number, since it is smaller than the sum of its proper divisors (138334023008).

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

131445366256 is a wasteful number, since it uses less digits than its factorization.

131445366256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220609 (or 220603 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 46.

The spelling of 131445366256 in words is "one hundred thirty-one billion, four hundred forty-five million, three hundred sixty-six thousand, two hundred fifty-six".