1616223513 has 16 divisors (see below), whose sum is σ = 2208810816. Its totient is φ = 1050878400.

The previous prime is 1616223461. The next prime is 1616223523. The reversal of 1616223513 is 3153226161.

It is not a de Polignac number, because 1616223513 - 2¹⁷ = 1616092441 is a prime.

It is a super-2 number, since 2×1616223513² = 5224356887948122338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616223523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19506 + ... + 60107.

It is an arithmetic number, because the mean of its divisors is an integer number (138050676).

Almost surely, 2^1616223513 is an apocalyptic number.

It is an amenable number.

1616223513 is a deficient number, since it is larger than the sum of its proper divisors (592587303).

1616223513 is a wasteful number, since it uses less digits than its factorization.

1616223513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79784.

The product of its digits is 6480, while the sum is 30.

The square root of 1616223513 is about 40202.2824352051. The cubic root of 1616223513 is about 1173.5469621048.

Adding to 1616223513 its reverse (3153226161), we get a palindrome (4769449674).

The spelling of 1616223513 in words is "one billion, six hundred sixteen million, two hundred twenty-three thousand, five hundred thirteen".