516443663 has 8 divisors (see below), whose sum is σ = 564462720. Its totient is φ = 470384640.

The previous prime is 516443651. The next prime is 516443701. The reversal of 516443663 is 366344615.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 516443663 - 2¹⁰ = 516442639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516443623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489458 + ... + 490511.

It is an arithmetic number, because the mean of its divisors is an integer number (70557840).

Almost surely, 2^516443663 is an apocalyptic number.

516443663 is a deficient number, since it is larger than the sum of its proper divisors (48019057).

516443663 is a wasteful number, since it uses less digits than its factorization.

516443663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980017.

The product of its digits is 155520, while the sum is 38.

The square root of 516443663 is about 22725.3968722221. The cubic root of 516443663 is about 802.3077443066.

The spelling of 516443663 in words is "five hundred sixteen million, four hundred forty-three thousand, six hundred sixty-three".