256153312543 has 2 divisors, whose sum is σ = 256153312544. Its totient is φ = 256153312542.

The previous prime is 256153312483. The next prime is 256153312603. The reversal of 256153312543 is 345213351652.

It is a balanced prime because it is at equal distance from previous prime (256153312483) and next prime (256153312603).

It is a cyclic number.

It is not a de Polignac number, because 256153312543 - 2²⁹ = 255616441631 is a prime.

It is a super-2 number, since 2×256153312543² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 256153312496 and 256153312505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256153612543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128076656271 + 128076656272.

It is an arithmetic number, because the mean of its divisors is an integer number (128076656272).

Almost surely, 2^256153312543 is an apocalyptic number.

256153312543 is a deficient number, since it is larger than the sum of its proper divisors (1).

256153312543 is an equidigital number, since it uses as much as digits as its factorization.

256153312543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 40.

The spelling of 256153312543 in words is "two hundred fifty-six billion, one hundred fifty-three million, three hundred twelve thousand, five hundred forty-three".