256065170012 has 12 divisors (see below), whose sum is σ = 451121525400. Its totient is φ = 127173305616.

The previous prime is 256065169981. The next prime is 256065170017. The reversal of 256065170012 is 210071560652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256065170017) 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, 214819178 + ... + 214820369.

It is an arithmetic number, because the mean of its divisors is an integer number (37593460450).

Almost surely, 2^256065170012 is an apocalyptic number.

It is an amenable number.

256065170012 is a deficient number, since it is larger than the sum of its proper divisors (195056355388).

256065170012 is a wasteful number, since it uses less digits than its factorization.

256065170012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429639700 (or 429639698 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The spelling of 256065170012 in words is "two hundred fifty-six billion, sixty-five million, one hundred seventy thousand, twelve".