516708720 has 300 divisors, whose sum is σ = 1975576680. Its totient is φ = 125072640.

The previous prime is 516708719. The next prime is 516708721. The reversal of 516708720 is 27807615.

516708720 is a `hidden beast` number, since 516 + 70 + 8 + 72 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (516708719) and next prime (516708721).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516708721) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 783751 + ... + 784409.

Almost surely, 2^516708720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 516708720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987788340).

516708720 is an abundant number, since it is smaller than the sum of its proper divisors (1458867960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

516708720 is a wasteful number, since it uses less digits than its factorization.

516708720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 516708720 is about 22731.2278594888. The cubic root of 516708720 is about 802.4449783221. Note that the first 3 decimals are identical.

The spelling of 516708720 in words is "five hundred sixteen million, seven hundred eight thousand, seven hundred twenty".