260320257420353 has 8 divisors (see below), whose sum is σ = 280953016024296. Its totient is φ = 239774373590400.

The previous prime is 260320257420347. The next prime is 260320257420403. The reversal of 260320257420353 is 353024752023062.

It can be written as a sum of positive squares in 4 ways, for example, as 299085390769 + 260021172029584 = 546887^2 + 16125172^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 260320257420353 - 2¹⁰ = 260320257419329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (260325257420353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21718687268 + ... + 21718699253.

It is an arithmetic number, because the mean of its divisors is an integer number (35119127003037).

Almost surely, 2^{260320257420353} is an apocalyptic number.

It is an amenable number.

260320257420353 is a deficient number, since it is larger than the sum of its proper divisors (20632758603943).

260320257420353 is a wasteful number, since it uses less digits than its factorization.

260320257420353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43437386995.

The product of its (nonzero) digits is 1814400, while the sum is 44.

The spelling of 260320257420353 in words is "two hundred sixty trillion, three hundred twenty billion, two hundred fifty-seven million, four hundred twenty thousand, three hundred fifty-three".