2166582382 has 16 divisors (see below), whose sum is σ = 3394082592. Its totient is φ = 1035302400.

The previous prime is 2166582377. The next prime is 2166582409. The reversal of 2166582382 is 2832856612.

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, 35638 + ... + 74854.

It is an arithmetic number, because the mean of its divisors is an integer number (212130162).

Almost surely, 2^2166582382 is an apocalyptic number.

2166582382 is a deficient number, since it is larger than the sum of its proper divisors (1227500210).

2166582382 is a wasteful number, since it uses less digits than its factorization.

2166582382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40443.

The product of its digits is 276480, while the sum is 43.

The square root of 2166582382 is about 46546.5614412064. The cubic root of 2166582382 is about 1293.9725668979.

The spelling of 2166582382 in words is "two billion, one hundred sixty-six million, five hundred eighty-two thousand, three hundred eighty-two".