260221856593 has 4 divisors (see below), whose sum is σ = 260227332720. Its totient is φ = 260216380468.

The previous prime is 260221856539. The next prime is 260221856617. The reversal of 260221856593 is 395658122062.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 260221856593 - 2³³ = 251631922001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260221856533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2666155 + ... + 2762032.

It is an arithmetic number, because the mean of its divisors is an integer number (65056833180).

Almost surely, 2^260221856593 is an apocalyptic number.

It is an amenable number.

260221856593 is a deficient number, since it is larger than the sum of its proper divisors (5476127).

260221856593 is an equidigital number, since it uses as much as digits as its factorization.

260221856593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5476126.

The product of its (nonzero) digits is 1555200, while the sum is 49.

The spelling of 260221856593 in words is "two hundred sixty billion, two hundred twenty-one million, eight hundred fifty-six thousand, five hundred ninety-three".