516040663 has 12 divisors (see below), whose sum is σ = 542027064. Its totient is φ = 491151600.

The previous prime is 516040649. The next prime is 516040669. The reversal of 516040663 is 366040615.

It is not a de Polignac number, because 516040663 - 2¹³ = 516032471 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516040669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54220 + ... + 63022.

It is an arithmetic number, because the mean of its divisors is an integer number (45168922).

Almost surely, 2^516040663 is an apocalyptic number.

516040663 is a deficient number, since it is larger than the sum of its proper divisors (25986401).

516040663 is an equidigital number, since it uses as much as digits as its factorization.

516040663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8926 (or 8895 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 516040663 is about 22716.5284099486. The cubic root of 516040663 is about 802.0989999118.

The spelling of 516040663 in words is "five hundred sixteen million, forty thousand, six hundred sixty-three".