2166770610 has 96 divisors (see below), whose sum is σ = 5723198208. Its totient is φ = 568673280.

The previous prime is 2166770609. The next prime is 2166770623. The reversal of 2166770610 is 160776612.

It is a Curzon number.

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 47 ways as a sum of consecutive naturals, for example, 3219234 + ... + 3219906.

It is an arithmetic number, because the mean of its divisors is an integer number (59616648).

Almost surely, 2^2166770610 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2166770610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2861599104).

2166770610 is an abundant number, since it is smaller than the sum of its proper divisors (3556427598).

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

2166770610 is a wasteful number, since it uses less digits than its factorization.

2166770610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200 (or 1197 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2166770610 is about 46548.5833296783. The cubic root of 2166770610 is about 1294.0100383271.

The spelling of 2166770610 in words is "two billion, one hundred sixty-six million, seven hundred seventy thousand, six hundred ten".