256330053346 has 4 divisors (see below), whose sum is σ = 384495080022. Its totient is φ = 128165026672.

The previous prime is 256330053313. The next prime is 256330053401. The reversal of 256330053346 is 643350033652.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 207493915225 + 48836138121 = 455515^2 + 220989^2 .

It is a junction number, because it is equal to n+sod(n) for n = 256330053299 and 256330053308.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 64082513335 + ... + 64082513338.

Almost surely, 2^256330053346 is an apocalyptic number.

256330053346 is a deficient number, since it is larger than the sum of its proper divisors (128165026676).

256330053346 is a wasteful number, since it uses less digits than its factorization.

256330053346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128165026675.

The product of its (nonzero) digits is 583200, while the sum is 40.

Adding to 256330053346 its reverse (643350033652), we get a palindrome (899680086998).

The spelling of 256330053346 in words is "two hundred fifty-six billion, three hundred thirty million, fifty-three thousand, three hundred forty-six".