2261656168 has 32 divisors (see below), whose sum is σ = 4339008000. Its totient is φ = 1104678592.

The previous prime is 2261656141. The next prime is 2261656211. The reversal of 2261656168 is 8616561622.

It is an unprimeable number.

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, 204033 + ... + 214831.

It is an arithmetic number, because the mean of its divisors is an integer number (135594000).

Almost surely, 2^2261656168 is an apocalyptic number.

It is an amenable number.

2261656168 is a deficient number, since it is larger than the sum of its proper divisors (2077351832).

2261656168 is a wasteful number, since it uses less digits than its factorization.

2261656168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409 (or 11405 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The square root of 2261656168 is about 47556.8729838285. The cubic root of 2261656168 is about 1312.6296009650.

The spelling of 2261656168 in words is "two billion, two hundred sixty-one million, six hundred fifty-six thousand, one hundred sixty-eight".