516303427521 has 16 divisors (see below), whose sum is σ = 789809364864. Its totient is φ = 293882548224.

The previous prime is 516303427447. The next prime is 516303427579. The reversal of 516303427521 is 125724303615.

It is not a de Polignac number, because 516303427521 - 2¹⁸ = 516303165377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 516303427521.

It is not an unprimeable number, because it can be changed into a prime (516303422521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47827050 + ... + 47837843.

It is an arithmetic number, because the mean of its divisors is an integer number (49363085304).

Almost surely, 2^516303427521 is an apocalyptic number.

It is an amenable number.

516303427521 is a deficient number, since it is larger than the sum of its proper divisors (273505937343).

516303427521 is a wasteful number, since it uses less digits than its factorization.

516303427521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95665160.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 516303427521 in words is "five hundred sixteen billion, three hundred three million, four hundred twenty-seven thousand, five hundred twenty-one".