2116645304503 has 6 divisors (see below), whose sum is σ = 2137809692912. Its totient is φ = 2095688410200.

The previous prime is 2116645304467. The next prime is 2116645304507. The reversal of 2116645304503 is 3054035466112.

It is a de Polignac number, because none of the positive numbers 2^k-2116645304503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2116645304507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 103736751 + ... + 103757152.

Almost surely, 2^{2116645304503} is an apocalyptic number.

2116645304503 is a deficient number, since it is larger than the sum of its proper divisors (21164388409).

2116645304503 is an equidigital number, since it uses as much as digits as its factorization.

2116645304503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207494105 (or 207494004 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 2116645304503 in words is "two trillion, one hundred sixteen billion, six hundred forty-five million, three hundred four thousand, five hundred three".