2261412665 has 4 divisors (see below), whose sum is σ = 2713695204. Its totient is φ = 1809130128.

The previous prime is 2261412653. The next prime is 2261412691. The reversal of 2261412665 is 5662141622.

2261412665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 792760336 + 1468652329 = 28156^2 + 38323^2 .

It is a cyclic number.

It is not a de Polignac number, because 2261412665 - 2⁴ = 2261412649 is a prime.

It is a super-2 number, since 2×2261412665² = 10227974482844804450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226141262 + ... + 226141271.

It is an arithmetic number, because the mean of its divisors is an integer number (678423801).

Almost surely, 2^2261412665 is an apocalyptic number.

It is an amenable number.

2261412665 is a deficient number, since it is larger than the sum of its proper divisors (452282539).

2261412665 is an equidigital number, since it uses as much as digits as its factorization.

2261412665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452282538.

The product of its digits is 34560, while the sum is 35.

The square root of 2261412665 is about 47554.3127907449. The cubic root of 2261412665 is about 1312.5824908395.

The spelling of 2261412665 in words is "two billion, two hundred sixty-one million, four hundred twelve thousand, six hundred sixty-five".