256755722101 has 2 divisors, whose sum is σ = 256755722102. Its totient is φ = 256755722100.

The previous prime is 256755722059. The next prime is 256755722131. The reversal of 256755722101 is 101227557652.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250710504100 + 6045218001 = 500710^2 + 77751^2 .

It is a cyclic number.

It is not a de Polignac number, because 256755722101 - 2¹⁹ = 256755197813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (256755722131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128377861050 + 128377861051.

It is an arithmetic number, because the mean of its divisors is an integer number (128377861051).

Almost surely, 2^256755722101 is an apocalyptic number.

It is an amenable number.

256755722101 is a deficient number, since it is larger than the sum of its proper divisors (1).

256755722101 is an equidigital number, since it uses as much as digits as its factorization.

256755722101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 256755722101 in words is "two hundred fifty-six billion, seven hundred fifty-five million, seven hundred twenty-two thousand, one hundred one".