516620071 has 8 divisors (see below), whose sum is σ = 563753088. Its totient is φ = 469515000.

The previous prime is 516620063. The next prime is 516620077. The reversal of 516620071 is 170026615.

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 516620071 - 2³ = 516620063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516620077) 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, 58006 + ... + 66316.

It is an arithmetic number, because the mean of its divisors is an integer number (70469136).

Almost surely, 2^516620071 is an apocalyptic number.

516620071 is a deficient number, since it is larger than the sum of its proper divisors (47133017).

516620071 is a wasteful number, since it uses less digits than its factorization.

516620071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13973.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 516620071 is about 22729.2778371861. The cubic root of 516620071 is about 802.3990852747.

Adding to 516620071 its reverse (170026615), we get a palindrome (686646686).

The spelling of 516620071 in words is "five hundred sixteen million, six hundred twenty thousand, seventy-one".