516291616 has 48 divisors (see below), whose sum is σ = 1042602624. Its totient is φ = 251553024.

The previous prime is 516291593. The next prime is 516291631. The reversal of 516291616 is 616192615.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425026 + ... + 426238.

It is an arithmetic number, because the mean of its divisors is an integer number (21720888).

Almost surely, 2^516291616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 516291616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (521301312).

516291616 is an abundant number, since it is smaller than the sum of its proper divisors (526311008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516291616 is a wasteful number, since it uses less digits than its factorization.

516291616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553 (or 1545 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 516291616 is about 22722.0513158473. The cubic root of 516291616 is about 802.2290003454.

Subtracting 516291616 from its reverse (616192615), we obtain a palindrome (99900999).

The spelling of 516291616 in words is "five hundred sixteen million, two hundred ninety-one thousand, six hundred sixteen".