2166502382 has 16 divisors (see below), whose sum is σ = 3571067952. Its totient is φ = 977584320.

The previous prime is 2166502381. The next prime is 2166502397. The reversal of 2166502382 is 2832056612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166502381) 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, 356393 + ... + 362420.

It is an arithmetic number, because the mean of its divisors is an integer number (223191747).

Almost surely, 2^2166502382 is an apocalyptic number.

2166502382 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2166502382 is a deficient number, since it is larger than the sum of its proper divisors (1404565570).

2166502382 is a wasteful number, since it uses less digits than its factorization.

2166502382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718963.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 2166502382 is about 46545.7020787097. The cubic root of 2166502382 is about 1293.9566402661.

Adding to 2166502382 its reverse (2832056612), we get a palindrome (4998558994).

The spelling of 2166502382 in words is "two billion, one hundred sixty-six million, five hundred two thousand, three hundred eighty-two".