2016138728441 has 2 divisors, whose sum is σ = 2016138728442. Its totient is φ = 2016138728440.

The previous prime is 2016138728423. The next prime is 2016138728503. The reversal of 2016138728441 is 1448278316102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1760915730025 + 255222998416 = 1326995^2 + 505196^2 .

It is a cyclic number.

It is not a de Polignac number, because 2016138728441 - 2⁶ = 2016138728377 is a prime.

It is not a weakly prime, because it can be changed into another prime (2016138724441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1008069364220 + 1008069364221.

It is an arithmetic number, because the mean of its divisors is an integer number (1008069364221).

Almost surely, 2^{2016138728441} is an apocalyptic number.

It is an amenable number.

2016138728441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2016138728441 is an equidigital number, since it uses as much as digits as its factorization.

2016138728441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 2016138728441 in words is "two trillion, sixteen billion, one hundred thirty-eight million, seven hundred twenty-eight thousand, four hundred forty-one".