256016911061 has 8 divisors (see below), whose sum is σ = 260621098560. Its totient is φ = 251421554272.

The previous prime is 256016911057. The next prime is 256016911069. The reversal of 256016911061 is 160119610652.

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

It is a cyclic number.

It is not a de Polignac number, because 256016911061 - 2² = 256016911057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256016911069) 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, 2149160 + ... + 2265153.

It is an arithmetic number, because the mean of its divisors is an integer number (32577637320).

Almost surely, 2^256016911061 is an apocalyptic number.

It is an amenable number.

256016911061 is a deficient number, since it is larger than the sum of its proper divisors (4604187499).

256016911061 is an equidigital number, since it uses as much as digits as its factorization.

256016911061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415355.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 256016911061 in words is "two hundred fifty-six billion, sixteen million, nine hundred eleven thousand, sixty-one".