260156914217 has 2 divisors, whose sum is σ = 260156914218. Its totient is φ = 260156914216.

The previous prime is 260156914177. The next prime is 260156914319. The reversal of 260156914217 is 712419651062.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210721393936 + 49435520281 = 459044^2 + 222341^2 .

It is a cyclic number.

It is not a de Polignac number, because 260156914217 - 2¹⁰ = 260156913193 is a prime.

It is a super-2 number, since 2×260156914217² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (260156914517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130078457108 + 130078457109.

It is an arithmetic number, because the mean of its divisors is an integer number (130078457109).

Almost surely, 2^260156914217 is an apocalyptic number.

It is an amenable number.

260156914217 is a deficient number, since it is larger than the sum of its proper divisors (1).

260156914217 is an equidigital number, since it uses as much as digits as its factorization.

260156914217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 260156914217 in words is "two hundred sixty billion, one hundred fifty-six million, nine hundred fourteen thousand, two hundred seventeen".