1616253513 has 32 divisors (see below), whose sum is σ = 2531020800. Its totient is φ = 898200576.

The previous prime is 1616253481. The next prime is 1616253517. The reversal of 1616253513 is 3153526161.

It is not a de Polignac number, because 1616253513 - 2⁵ = 1616253481 is a prime.

It is a super-2 number, since 2×1616253513² = 5224550836569682338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616253517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212073 + ... + 219561.

It is an arithmetic number, because the mean of its divisors is an integer number (79094400).

Almost surely, 2^1616253513 is an apocalyptic number.

It is an amenable number.

1616253513 is a deficient number, since it is larger than the sum of its proper divisors (914767287).

1616253513 is a wasteful number, since it uses less digits than its factorization.

1616253513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781.

The product of its digits is 16200, while the sum is 33.

The square root of 1616253513 is about 40202.6555466178. The cubic root of 1616253513 is about 1173.5542231036.

Adding to 1616253513 its reverse (3153526161), we get a palindrome (4769779674).

The spelling of 1616253513 in words is "one billion, six hundred sixteen million, two hundred fifty-three thousand, five hundred thirteen".