2166703386 has 16 divisors (see below), whose sum is σ = 4335345504. Its totient is φ = 721911344.

The previous prime is 2166703373. The next prime is 2166703391. The reversal of 2166703386 is 6833076612.

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, 66045 + ... + 93248.

It is an arithmetic number, because the mean of its divisors is an integer number (270959094).

Almost surely, 2^2166703386 is an apocalyptic number.

2166703386 is an abundant number, since it is smaller than the sum of its proper divisors (2168642118).

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

2166703386 is a wasteful number, since it uses less digits than its factorization.

2166703386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161565.

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 2166703386 is about 46547.8612398035. The cubic root of 2166703386 is about 1293.9966559798.

Adding to 2166703386 its reverse (6833076612), we get a palindrome (8999779998).

The spelling of 2166703386 in words is "two billion, one hundred sixty-six million, seven hundred three thousand, three hundred eighty-six".