256612226146752 has 56 divisors (see below), whose sum is σ = 775946493352576. Its totient is φ = 73317778898688.

The previous prime is 256612226146751. The next prime is 256612226146763. The reversal of 256612226146752 is 257641622216652.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 256612226146692 and 256612226146701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256612226146751) 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, 95465856598 + ... + 95465859285.

It is an arithmetic number, because the mean of its divisors is an integer number (13856187381296).

Almost surely, 2^{256612226146752} is an apocalyptic number.

It is an amenable number.

256612226146752 is an abundant number, since it is smaller than the sum of its proper divisors (519334267205824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256612226146752 is a wasteful number, since it uses less digits than its factorization.

256612226146752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190931715905 (or 190931715895 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 57.

The spelling of 256612226146752 in words is "two hundred fifty-six trillion, six hundred twelve billion, two hundred twenty-six million, one hundred forty-six thousand, seven hundred fifty-two".