2166700170 has 16 divisors (see below), whose sum is σ = 5200080480. Its totient is φ = 577786704.

The previous prime is 2166700163. The next prime is 2166700181. The reversal of 2166700170 is 710076612.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 72223339 = 2166700170 / (2 + 1 + 6 + 6 + 7 + 0 + 0 + 1 + 7 + 0).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36111640 + ... + 36111699.

It is an arithmetic number, because the mean of its divisors is an integer number (325005030).

Almost surely, 2^2166700170 is an apocalyptic number.

2166700170 is an abundant number, since it is smaller than the sum of its proper divisors (3033380310).

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

2166700170 is a wasteful number, since it uses less digits than its factorization.

2166700170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72223349.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 2166700170 is about 46547.8266947019. The cubic root of 2166700170 is about 1293.9960157606.

Adding to 2166700170 its reverse (710076612), we get a palindrome (2876776782).

The spelling of 2166700170 in words is "two billion, one hundred sixty-six million, seven hundred thousand, one hundred seventy".