256125653146 has 64 divisors (see below), whose sum is σ = 458779852800. Its totient is φ = 105931627200.

The previous prime is 256125653111. The next prime is 256125653153. The reversal of 256125653146 is 641356521652.

It is a junction number, because it is equal to n+sod(n) for n = 256125653096 and 256125653105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2259991 + ... + 2370613.

It is an arithmetic number, because the mean of its divisors is an integer number (7168435200).

Almost surely, 2^256125653146 is an apocalyptic number.

256125653146 is a deficient number, since it is larger than the sum of its proper divisors (202654199654).

256125653146 is a wasteful number, since it uses less digits than its factorization.

256125653146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110875.

The product of its digits is 1296000, while the sum is 46.

The spelling of 256125653146 in words is "two hundred fifty-six billion, one hundred twenty-five million, six hundred fifty-three thousand, one hundred forty-six".