2110556845 has 4 divisors (see below), whose sum is σ = 2532668220. Its totient is φ = 1688445472.

The previous prime is 2110556827. The next prime is 2110556869. The reversal of 2110556845 is 5486550112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 258373476 + 1852183369 = 16074^2 + 43037^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110556845 - 2⁵ = 2110556813 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211055680 + ... + 211055689.

It is an arithmetic number, because the mean of its divisors is an integer number (633167055).

Almost surely, 2^2110556845 is an apocalyptic number.

It is an amenable number.

2110556845 is a deficient number, since it is larger than the sum of its proper divisors (422111375).

2110556845 is an equidigital number, since it uses as much as digits as its factorization.

2110556845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422111374.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 2110556845 is about 45940.7971741893. The cubic root of 2110556845 is about 1282.7214325065.

The spelling of 2110556845 in words is "two billion, one hundred ten million, five hundred fifty-six thousand, eight hundred forty-five".