1616363530765 has 4 divisors (see below), whose sum is σ = 1939636236924. Its totient is φ = 1293090824608.

The previous prime is 1616363530759. The next prime is 1616363530799. The reversal of 1616363530765 is 5670353636161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 387178884169 + 1229184646596 = 622237^2 + 1108686^2 .

It is a cyclic number.

It is not a de Polignac number, because 1616363530765 - 2³ = 1616363530757 is a prime.

It is a super-2 number, since 2×1616363530765² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161636353072 + ... + 161636353081.

It is an arithmetic number, because the mean of its divisors is an integer number (484909059231).

Almost surely, 2^{1616363530765} is an apocalyptic number.

It is an amenable number.

1616363530765 is a deficient number, since it is larger than the sum of its proper divisors (323272706159).

1616363530765 is an equidigital number, since it uses as much as digits as its factorization.

1616363530765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323272706158.

The product of its (nonzero) digits is 6123600, while the sum is 52.

The spelling of 1616363530765 in words is "one trillion, six hundred sixteen billion, three hundred sixty-three million, five hundred thirty thousand, seven hundred sixty-five".