260216688469 has 2 divisors, whose sum is σ = 260216688470. Its totient is φ = 260216688468.

The previous prime is 260216688419. The next prime is 260216688497. The reversal of 260216688469 is 964886612062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233928930244 + 26287758225 = 483662^2 + 162135^2 .

It is a cyclic number.

It is not a de Polignac number, because 260216688469 - 2⁷ = 260216688341 is a prime.

It is a super-2 number, since 2×260216688469² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260216688409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130108344234 + 130108344235.

It is an arithmetic number, because the mean of its divisors is an integer number (130108344235).

Almost surely, 2^260216688469 is an apocalyptic number.

It is an amenable number.

260216688469 is a deficient number, since it is larger than the sum of its proper divisors (1).

260216688469 is an equidigital number, since it uses as much as digits as its factorization.

260216688469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11943936, while the sum is 58.

The spelling of 260216688469 in words is "two hundred sixty billion, two hundred sixteen million, six hundred eighty-eight thousand, four hundred sixty-nine".