1616542231267 has 2 divisors, whose sum is σ = 1616542231268. Its totient is φ = 1616542231266.

The previous prime is 1616542231261. The next prime is 1616542231373. The reversal of 1616542231267 is 7621322456161.

It is a weak prime.

It is an emirp because it is prime and its reverse (7621322456161) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1616542231267 - 2¹¹ = 1616542229219 is a prime.

It is a super-2 number, since 2×1616542231267² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1616542231261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808271115633 + 808271115634.

It is an arithmetic number, because the mean of its divisors is an integer number (808271115634).

Almost surely, 2^{1616542231267} is an apocalyptic number.

1616542231267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616542231267 is an equidigital number, since it uses as much as digits as its factorization.

1616542231267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 46.

The spelling of 1616542231267 in words is "one trillion, six hundred sixteen billion, five hundred forty-two million, two hundred thirty-one thousand, two hundred sixty-seven".