516442663 has 8 divisors (see below), whose sum is σ = 564385536. Its totient is φ = 468665400.

The previous prime is 516442649. The next prime is 516442697. The reversal of 516442663 is 366244615.

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 516442663 - 2⁹ = 516442151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516442613) 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, 34831 + ... + 47392.

It is an arithmetic number, because the mean of its divisors is an integer number (70548192).

Almost surely, 2^516442663 is an apocalyptic number.

516442663 is a deficient number, since it is larger than the sum of its proper divisors (47942873).

516442663 is a wasteful number, since it uses less digits than its factorization.

516442663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82805.

The product of its digits is 103680, while the sum is 37.

The square root of 516442663 is about 22725.3748703954. The cubic root of 516442663 is about 802.3072264648.

The spelling of 516442663 in words is "five hundred sixteen million, four hundred forty-two thousand, six hundred sixty-three".