256022122066 has 8 divisors (see below), whose sum is σ = 385724959920. Its totient is φ = 127447135428.

The previous prime is 256022122063. The next prime is 256022122079. The reversal of 256022122066 is 660221220652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (256022122063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281962236 + ... + 281963143.

It is an arithmetic number, because the mean of its divisors is an integer number (48215619990).

Almost surely, 2^256022122066 is an apocalyptic number.

256022122066 is a deficient number, since it is larger than the sum of its proper divisors (129702837854).

256022122066 is a wasteful number, since it uses less digits than its factorization.

256022122066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563925608.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 256022122066 in words is "two hundred fifty-six billion, twenty-two million, one hundred twenty-two thousand, sixty-six".