256054591964 has 6 divisors (see below), whose sum is σ = 448095535944. Its totient is φ = 128027295980.

The previous prime is 256054591963. The next prime is 256054592009. The reversal of 256054591964 is 469195450652.

256054591964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×256054591964³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256054591963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32006823992 + ... + 32006823999.

It is an arithmetic number, because the mean of its divisors is an integer number (74682589324).

Almost surely, 2^256054591964 is an apocalyptic number.

It is an amenable number.

256054591964 is a deficient number, since it is larger than the sum of its proper divisors (192040943980).

256054591964 is a wasteful number, since it uses less digits than its factorization.

256054591964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64013647995 (or 64013647993 counting only the distinct ones).

The product of its (nonzero) digits is 11664000, while the sum is 56.

The spelling of 256054591964 in words is "two hundred fifty-six billion, fifty-four million, five hundred ninety-one thousand, nine hundred sixty-four".