2168522056 has 16 divisors (see below), whose sum is σ = 4070096640. Its totient is φ = 1083162960.

The previous prime is 2168522051. The next prime is 2168522071. The reversal of 2168522056 is 6502258612.

It is not an unprimeable number, because it can be changed into a prime (2168522051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128836 + ... + 144691.

It is an arithmetic number, because the mean of its divisors is an integer number (254381040).

Almost surely, 2^2168522056 is an apocalyptic number.

It is an amenable number.

2168522056 is a deficient number, since it is larger than the sum of its proper divisors (1901574584).

2168522056 is a wasteful number, since it uses less digits than its factorization.

2168522056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274524 (or 274520 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 2168522056 is about 46567.3926261714. The cubic root of 2168522056 is about 1294.3586028856.

The spelling of 2168522056 in words is "two billion, one hundred sixty-eight million, five hundred twenty-two thousand, fifty-six".