2163834666 has 48 divisors (see below), whose sum is σ = 5502891264. Its totient is φ = 601528032.

The previous prime is 2163834653. The next prime is 2163834671. The reversal of 2163834666 is 6664383612.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227410 + ... + 236733.

It is an arithmetic number, because the mean of its divisors is an integer number (114643568).

Almost surely, 2^2163834666 is an apocalyptic number.

2163834666 is an abundant number, since it is smaller than the sum of its proper divisors (3339056598).

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

2163834666 is a wasteful number, since it uses less digits than its factorization.

2163834666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464195 (or 464192 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 2163834666 is about 46517.0362985434. The cubic root of 2163834666 is about 1293.4253189586.

It can be divided in two parts, 2163834 and 666, that multiplied together give a square (1441113444 = 37962²).

The spelling of 2163834666 in words is "two billion, one hundred sixty-three million, eight hundred thirty-four thousand, six hundred sixty-six".