2256323011543 has 8 divisors (see below), whose sum is σ = 2277604759680. Its totient is φ = 2235044867640.

The previous prime is 2256323011507. The next prime is 2256323011549. The reversal of 2256323011543 is 3451103236522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2256323011543 - 2²⁵ = 2256289457111 is a prime.

It is a super-2 number, since 2×2256323011543² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256323011549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365238 + ... + 2155468.

It is an arithmetic number, because the mean of its divisors is an integer number (284700594960).

Almost surely, 2^{2256323011543} is an apocalyptic number.

2256323011543 is a deficient number, since it is larger than the sum of its proper divisors (21281748137).

2256323011543 is a wasteful number, since it uses less digits than its factorization.

2256323011543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802117.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 2256323011543 in words is "two trillion, two hundred fifty-six billion, three hundred twenty-three million, eleven thousand, five hundred forty-three".