2265561060321 has 8 divisors (see below), whose sum is σ = 3253113317440. Its totient is φ = 1394191421712.

The previous prime is 2265561060293. The next prime is 2265561060337. The reversal of 2265561060321 is 1230601655622.

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

It is not a de Polignac number, because 2265561060321 - 2¹⁵ = 2265561027553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 58091309239 = 2265561060321 / (2 + 2 + 6 + 5 + 5 + 6 + 1 + 0 + 6 + 0 + 3 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2265561060321.

It is not an unprimeable number, because it can be changed into a prime (2265561060361) 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, 29045654581 + ... + 29045654658.

It is an arithmetic number, because the mean of its divisors is an integer number (406639164680).

Almost surely, 2^{2265561060321} is an apocalyptic number.

It is an amenable number.

2265561060321 is a deficient number, since it is larger than the sum of its proper divisors (987552257119).

2265561060321 is a wasteful number, since it uses less digits than its factorization.

2265561060321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58091309255.

The product of its (nonzero) digits is 129600, while the sum is 39.

The spelling of 2265561060321 in words is "two trillion, two hundred sixty-five billion, five hundred sixty-one million, sixty thousand, three hundred twenty-one".