2166582502803 has 8 divisors (see below), whose sum is σ = 2921234835600. Its totient is φ = 1428159252608.

The previous prime is 2166582502801. The next prime is 2166582502879. The reversal of 2166582502803 is 3082052856612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2166582502803 - 2¹ = 2166582502801 is a prime.

It is a super-4 number, since 4×2166582502803⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3, 2.

It is not an unprimeable number, because it can be changed into a prime (2166582502801) 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, 4057270338 + ... + 4057270871.

It is an arithmetic number, because the mean of its divisors is an integer number (365154354450).

Almost surely, 2^{2166582502803} is an apocalyptic number.

2166582502803 is a deficient number, since it is larger than the sum of its proper divisors (754652332797).

2166582502803 is an equidigital number, since it uses as much as digits as its factorization.

2166582502803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114541301.

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 2166582502803 in words is "two trillion, one hundred sixty-six billion, five hundred eighty-two million, five hundred two thousand, eight hundred three".