2166703384 has 32 divisors (see below), whose sum is σ = 4250232000. Its totient is φ = 1034433280.

The previous prime is 2166703373. The next prime is 2166703391. The reversal of 2166703384 is 4833076612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54859 + ... + 85690.

It is an arithmetic number, because the mean of its divisors is an integer number (132819750).

Almost surely, 2^2166703384 is an apocalyptic number.

It is an amenable number.

2166703384 is a deficient number, since it is larger than the sum of its proper divisors (2083528616).

2166703384 is a wasteful number, since it uses less digits than its factorization.

2166703384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140643 (or 140639 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 2166703384 is about 46547.8612183202. The cubic root of 2166703384 is about 1293.9966555817.

Adding to 2166703384 its reverse (4833076612), we get a palindrome (6999779996).

The spelling of 2166703384 in words is "two billion, one hundred sixty-six million, seven hundred three thousand, three hundred eighty-four".