516189663 has 24 divisors (see below), whose sum is σ = 856202880. Its totient is φ = 296375760.

The previous prime is 516189659. The next prime is 516189677. The reversal of 516189663 is 366981615.

It is not a de Polignac number, because 516189663 - 2² = 516189659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516189613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 135331 + ... + 139092.

It is an arithmetic number, because the mean of its divisors is an integer number (35675120).

Almost surely, 2^516189663 is an apocalyptic number.

516189663 is a deficient number, since it is larger than the sum of its proper divisors (340013217).

516189663 is a wasteful number, since it uses less digits than its factorization.

516189663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274459 (or 274456 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 516189663 is about 22719.8077236582. The cubic root of 516189663 is about 802.1761910189.

The spelling of 516189663 in words is "five hundred sixteen million, one hundred eighty-nine thousand, six hundred sixty-three".