256712500130 has 16 divisors (see below), whose sum is σ = 462232436544. Its totient is φ = 102651680880.

The previous prime is 256712500091. The next prime is 256712500159. The reversal of 256712500130 is 31005217652.

256712500130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4132526 + ... + 4194185.

It is an arithmetic number, because the mean of its divisors is an integer number (28889527284).

Almost surely, 2^256712500130 is an apocalyptic number.

256712500130 is a deficient number, since it is larger than the sum of its proper divisors (205519936414).

256712500130 is a wasteful number, since it uses less digits than its factorization.

256712500130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329801.

The product of its (nonzero) digits is 12600, while the sum is 32.

Adding to 256712500130 its reverse (31005217652), we get a palindrome (287717717782).

The spelling of 256712500130 in words is "two hundred fifty-six billion, seven hundred twelve million, five hundred thousand, one hundred thirty".