1616442137623 has 2 divisors, whose sum is σ = 1616442137624. Its totient is φ = 1616442137622.

The previous prime is 1616442137587. The next prime is 1616442137663. The reversal of 1616442137623 is 3267312446161.

It is a weak prime.

It is an emirp because it is prime and its reverse (3267312446161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1616442137623 - 2⁹ = 1616442137111 is a prime.

It is a super-2 number, since 2×1616442137623² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616442137663) 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 as a sum of consecutive naturals, namely, 808221068811 + 808221068812.

It is an arithmetic number, because the mean of its divisors is an integer number (808221068812).

Almost surely, 2^{1616442137623} is an apocalyptic number.

1616442137623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616442137623 is an equidigital number, since it uses as much as digits as its factorization.

1616442137623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 46.

The spelling of 1616442137623 in words is "one trillion, six hundred sixteen billion, four hundred forty-two million, one hundred thirty-seven thousand, six hundred twenty-three".