256222290964 has 24 divisors (see below), whose sum is σ = 451403064000. Its totient is φ = 127250155200.

The previous prime is 256222290853. The next prime is 256222290967. The reversal of 256222290964 is 469092222652.

256222290964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256222290967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10315392 + ... + 10340200.

It is an arithmetic number, because the mean of its divisors is an integer number (18808461000).

Almost surely, 2^256222290964 is an apocalyptic number.

It is an amenable number.

256222290964 is a deficient number, since it is larger than the sum of its proper divisors (195180773036).

256222290964 is a wasteful number, since it uses less digits than its factorization.

256222290964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42063 (or 42061 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 256222290964 in words is "two hundred fifty-six billion, two hundred twenty-two million, two hundred ninety thousand, nine hundred sixty-four".