256051125611 has 8 divisors (see below), whose sum is σ = 264952233120. Its totient is φ = 247154802048.

The previous prime is 256051125601. The next prime is 256051125613. The reversal of 256051125611 is 116521150652.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-256051125611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256051125613) 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, 1086911 + ... + 1301336.

It is an arithmetic number, because the mean of its divisors is an integer number (33119029140).

Almost surely, 2^256051125611 is an apocalyptic number.

256051125611 is a deficient number, since it is larger than the sum of its proper divisors (8901107509).

256051125611 is a wasteful number, since it uses less digits than its factorization.

256051125611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391973.

The product of its (nonzero) digits is 18000, while the sum is 35.

The spelling of 256051125611 in words is "two hundred fifty-six billion, fifty-one million, one hundred twenty-five thousand, six hundred eleven".