256344323443652 has 12 divisors (see below), whose sum is σ = 451354729009296. Its totient is φ = 127385829441000.

The previous prime is 256344323443633. The next prime is 256344323443723.

256344323443652 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196583069474 + ... + 196583070777.

It is an arithmetic number, because the mean of its divisors is an integer number (37612894084108).

Almost surely, 2^{256344323443652} is an apocalyptic number.

It is an amenable number.

256344323443652 is a deficient number, since it is larger than the sum of its proper divisors (195010405565644).

256344323443652 is a wasteful number, since it uses less digits than its factorization.

256344323443652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393166140418 (or 393166140416 counting only the distinct ones).

The product of its digits is 149299200, while the sum is 56.

The spelling of 256344323443652 in words is "two hundred fifty-six trillion, three hundred forty-four billion, three hundred twenty-three million, four hundred forty-three thousand, six hundred fifty-two".