2121160566 has 32 divisors (see below), whose sum is σ = 4930548480. Its totient is φ = 595773216.

The previous prime is 2121160553. The next prime is 2121160577. The reversal of 2121160566 is 6650611212.

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, 425521 + ... + 430476.

It is an arithmetic number, because the mean of its divisors is an integer number (154079640).

Almost surely, 2^2121160566 is an apocalyptic number.

2121160566 is an abundant number, since it is smaller than the sum of its proper divisors (2809387914).

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

2121160566 is a wasteful number, since it uses less digits than its factorization.

2121160566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856068.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2121160566 is about 46056.0589499362. The cubic root of 2121160566 is about 1284.8660331605.

Adding to 2121160566 its reverse (6650611212), we get a palindrome (8771771778).

The spelling of 2121160566 in words is "two billion, one hundred twenty-one million, one hundred sixty thousand, five hundred sixty-six".