516816772 has 24 divisors (see below), whose sum is σ = 939859200. Its totient is φ = 248366496.

The previous prime is 516816749. The next prime is 516816787. The reversal of 516816772 is 277618615.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15879 + ... + 35857.

It is an arithmetic number, because the mean of its divisors is an integer number (39160800).

Almost surely, 2^516816772 is an apocalyptic number.

It is an amenable number.

516816772 is a deficient number, since it is larger than the sum of its proper divisors (423042428).

516816772 is a wasteful number, since it uses less digits than its factorization.

516816772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20235 (or 20233 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The square root of 516816772 is about 22733.6044656363. The cubic root of 516816772 is about 802.5009090869.

The spelling of 516816772 in words is "five hundred sixteen million, eight hundred sixteen thousand, seven hundred seventy-two".