256724102210153 has 2 divisors, whose sum is σ = 256724102210154. Its totient is φ = 256724102210152.

The previous prime is 256724102210137. The next prime is 256724102210179. The reversal of 256724102210153 is 351012201427652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210410197503529 + 46313904706624 = 14505523^2 + 6805432^2 .

It is a cyclic number.

It is not a de Polignac number, because 256724102210153 - 2⁴ = 256724102210137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 256724102210153.

It is not a weakly prime, because it can be changed into another prime (256724102210053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128362051105076 + 128362051105077.

It is an arithmetic number, because the mean of its divisors is an integer number (128362051105077).

Almost surely, 2^{256724102210153} is an apocalyptic number.

It is an amenable number.

256724102210153 is a deficient number, since it is larger than the sum of its proper divisors (1).

256724102210153 is an equidigital number, since it uses as much as digits as its factorization.

256724102210153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 256724102210153 in words is "two hundred fifty-six trillion, seven hundred twenty-four billion, one hundred two million, two hundred ten thousand, one hundred fifty-three".