260818667 has 2 divisors, whose sum is σ = 260818668. Its totient is φ = 260818666.

The previous prime is 260818637. The next prime is 260818669. The reversal of 260818667 is 766818062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 260818667 - 2⁶ = 260818603 is a prime.

Together with 260818669, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (260818669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130409333 + 130409334.

It is an arithmetic number, because the mean of its divisors is an integer number (130409334).

Almost surely, 2^260818667 is an apocalyptic number.

260818667 is a deficient number, since it is larger than the sum of its proper divisors (1).

260818667 is an equidigital number, since it uses as much as digits as its factorization.

260818667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 260818667 is about 16149.8813308334. The cubic root of 260818667 is about 638.9196184819.

The spelling of 260818667 in words is "two hundred sixty million, eight hundred eighteen thousand, six hundred sixty-seven".