256275027664 has 10 divisors (see below), whose sum is σ = 496532866130. Its totient is φ = 128137513824.

The previous prime is 256275027649. The next prime is 256275027667. The reversal of 256275027664 is 466720572652.

It can be written as a sum of positive squares in only one way, i.e., 247215795264 + 9059232400 = 497208^2 + 95180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256275027667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8008594599 + ... + 8008594630.

It is an arithmetic number, because the mean of its divisors is an integer number (49653286613).

Almost surely, 2^256275027664 is an apocalyptic number.

It is an amenable number.

256275027664 is a deficient number, since it is larger than the sum of its proper divisors (240257838466).

256275027664 is a wasteful number, since it uses less digits than its factorization.

256275027664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16017189237 (or 16017189231 counting only the distinct ones).

The product of its (nonzero) digits is 8467200, while the sum is 52.

The spelling of 256275027664 in words is "two hundred fifty-six billion, two hundred seventy-five million, twenty-seven thousand, six hundred sixty-four".