256116154 has 16 divisors (see below), whose sum is σ = 441289728. Its totient is φ = 109205712.

The previous prime is 256116151. The next prime is 256116167. The reversal of 256116154 is 451611652.

It is not an unprimeable number, because it can be changed into a prime (256116151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43674 + ... + 49189.

It is an arithmetic number, because the mean of its divisors is an integer number (27580608).

Almost surely, 2^256116154 is an apocalyptic number.

256116154 is a deficient number, since it is larger than the sum of its proper divisors (185173574).

256116154 is a wasteful number, since it uses less digits than its factorization.

256116154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93069.

The product of its digits is 7200, while the sum is 31.

The square root of 256116154 is about 16003.6294008578. The cubic root of 256116154 is about 635.0564390697.

The spelling of 256116154 in words is "two hundred fifty-six million, one hundred sixteen thousand, one hundred fifty-four".