2261605466 has 16 divisors (see below), whose sum is σ = 3425776200. Its totient is φ = 1119693888.

The previous prime is 2261605429. The next prime is 2261605471. The reversal of 2261605466 is 6645061622.

2261605466 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2118300625 + 143304841 = 46025^2 + 11971^2 .

It is a super-2 number, since 2×2261605466² = 10229718567682154312, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501116 + ... + 505608.

Almost surely, 2^2261605466 is an apocalyptic number.

2261605466 is a deficient number, since it is larger than the sum of its proper divisors (1164170734).

2261605466 is a wasteful number, since it uses less digits than its factorization.

2261605466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 2261605466 is about 47556.3399138327. The cubic root of 2261605466 is about 1312.6197920111.

The spelling of 2261605466 in words is "two billion, two hundred sixty-one million, six hundred five thousand, four hundred sixty-six".