1616340413 has 2 divisors, whose sum is σ = 1616340414. Its totient is φ = 1616340412.

The previous prime is 1616340389. The next prime is 1616340443. The reversal of 1616340413 is 3140436161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1126072249 + 490268164 = 33557^2 + 22142^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1616340413 is a prime.

It is a super-2 number, since 2×1616340413² = 5225112661394021138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1616340443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 808170206 + 808170207.

It is an arithmetic number, because the mean of its divisors is an integer number (808170207).

Almost surely, 2^1616340413 is an apocalyptic number.

It is an amenable number.

1616340413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1616340413 is an equidigital number, since it uses as much as digits as its factorization.

1616340413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1616340413 is about 40203.7363064678. The cubic root of 1616340413 is about 1173.5752552898.

Adding to 1616340413 its reverse (3140436161), we get a palindrome (4756776574).

The spelling of 1616340413 in words is "one billion, six hundred sixteen million, three hundred forty thousand, four hundred thirteen".