256754473031066 has 16 divisors (see below), whose sum is σ = 385370324911104. Its totient is φ = 128297700879264.

The previous prime is 256754473030967. The next prime is 256754473031083. The reversal of 256754473031066 is 660130374457652.

It is a junction number, because it is equal to n+sod(n) for n = 256754473030996 and 256754473031014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189448910 + ... + 190799366.

It is an arithmetic number, because the mean of its divisors is an integer number (24085645306944).

Almost surely, 2^{256754473031066} is an apocalyptic number.

256754473031066 is a deficient number, since it is larger than the sum of its proper divisors (128615851880038).

256754473031066 is a wasteful number, since it uses less digits than its factorization.

256754473031066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409285.

The product of its (nonzero) digits is 76204800, while the sum is 59.

The spelling of 256754473031066 in words is "two hundred fifty-six trillion, seven hundred fifty-four billion, four hundred seventy-three million, thirty-one thousand, sixty-six".