256604022232 has 16 divisors (see below), whose sum is σ = 481158053640. Its totient is φ = 128295207936.

The previous prime is 256604022221. The next prime is 256604022271. The reversal of 256604022232 is 232220406652.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 688278 + ... + 993445.

Almost surely, 2^256604022232 is an apocalyptic number.

It is an amenable number.

256604022232 is a deficient number, since it is larger than the sum of its proper divisors (224554031408).

256604022232 is a wasteful number, since it uses less digits than its factorization.

256604022232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1700802 (or 1700798 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 256604022232 its reverse (232220406652), we get a palindrome (488824428884).

The spelling of 256604022232 in words is "two hundred fifty-six billion, six hundred four million, twenty-two thousand, two hundred thirty-two".