260475366221 has 4 divisors (see below), whose sum is σ = 297686132832. Its totient is φ = 223264599612.

The previous prime is 260475366199. The next prime is 260475366247. The reversal of 260475366221 is 122663574062.

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 260475366221 - 2²⁶ = 260408257357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260475362221) 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, 18605383295 + ... + 18605383308.

It is an arithmetic number, because the mean of its divisors is an integer number (74421533208).

Almost surely, 2^260475366221 is an apocalyptic number.

It is an amenable number.

260475366221 is a deficient number, since it is larger than the sum of its proper divisors (37210766611).

260475366221 is an equidigital number, since it uses as much as digits as its factorization.

260475366221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37210766610.

The product of its (nonzero) digits is 725760, while the sum is 44.

The spelling of 260475366221 in words is "two hundred sixty billion, four hundred seventy-five million, three hundred sixty-six thousand, two hundred twenty-one".