2265360661 has 8 divisors (see below), whose sum is σ = 2314327680. Its totient is φ = 2216425728.

The previous prime is 2265360589. The next prime is 2265360677. The reversal of 2265360661 is 1660635622.

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 2265360661 - 2⁷ = 2265360533 is a prime.

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 2265360661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265360961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183285 + ... + 195253.

It is an arithmetic number, because the mean of its divisors is an integer number (289290960).

Almost surely, 2^2265360661 is an apocalyptic number.

It is an amenable number.

2265360661 is a deficient number, since it is larger than the sum of its proper divisors (48967019).

2265360661 is a wasteful number, since it uses less digits than its factorization.

2265360661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16043.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2265360661 is about 47595.8050777587. The cubic root of 2265360661 is about 1313.3458864799.

The spelling of 2265360661 in words is "two billion, two hundred sixty-five million, three hundred sixty thousand, six hundred sixty-one".