256446600045 has 16 divisors (see below), whose sum is σ = 410335955520. Its totient is φ = 136764388224.

The previous prime is 256446600019. The next prime is 256446600049. The reversal of 256446600045 is 540006644652.

It is not a de Polignac number, because 256446600045 - 2¹¹ = 256446597997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256446600049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141799 + ... + 730068.

It is an arithmetic number, because the mean of its divisors is an integer number (25645997220).

Almost surely, 2^256446600045 is an apocalyptic number.

It is an amenable number.

256446600045 is a deficient number, since it is larger than the sum of its proper divisors (153889355475).

256446600045 is a wasteful number, since it uses less digits than its factorization.

256446600045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891484.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 256446600045 in words is "two hundred fifty-six billion, four hundred forty-six million, six hundred thousand, forty-five".