2261140056 has 64 divisors (see below), whose sum is σ = 7178227200. Its totient is φ = 646039584.

The previous prime is 2261140027. The next prime is 2261140067. The reversal of 2261140056 is 6500411622.

2261140056 is a `hidden beast` number, since 2 + 2 + 611 + 40 + 0 + 5 + 6 = 666.

It is a super-2 number, since 2×2261140056² = 10225508705695366272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746220 + ... + 749243.

It is an arithmetic number, because the mean of its divisors is an integer number (112159800).

Almost surely, 2^2261140056 is an apocalyptic number.

It is an amenable number.

2261140056 is an abundant number, since it is smaller than the sum of its proper divisors (4917087144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2261140056 is a wasteful number, since it uses less digits than its factorization.

2261140056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495485 (or 1495475 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 2261140056 is about 47551.4464133322. The cubic root of 2261140056 is about 1312.5297456116.

Adding to 2261140056 its reverse (6500411622), we get a palindrome (8761551678).

The spelling of 2261140056 in words is "two billion, two hundred sixty-one million, one hundred forty thousand, fifty-six".