2166860343 has 8 divisors (see below), whose sum is σ = 2956336768. Its totient is φ = 1410978744.

The previous prime is 2166860329. The next prime is 2166860347. The reversal of 2166860343 is 3430686612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2166860343 - 2²¹ = 2164763191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166860347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8398555 + ... + 8398812.

It is an arithmetic number, because the mean of its divisors is an integer number (369542096).

Almost surely, 2^2166860343 is an apocalyptic number.

2166860343 is a deficient number, since it is larger than the sum of its proper divisors (789476425).

2166860343 is a wasteful number, since it uses less digits than its factorization.

2166860343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16797413.

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 2166860343 is about 46549.5471836193. The cubic root of 2166860343 is about 1294.0279011317.

The spelling of 2166860343 in words is "two billion, one hundred sixty-six million, eight hundred sixty thousand, three hundred forty-three".