516215163125 has 10 divisors (see below), whose sum is σ = 645062468622. Its totient is φ = 412972130000.

The previous prime is 516215163091. The next prime is 516215163169. The reversal of 516215163125 is 521361512615.

It can be written as a sum of positive squares in 5 ways, for example, as 45369426001 + 470845737124 = 213001^2 + 686182^2 .

It is not a de Polignac number, because 516215163125 - 2³⁶ = 447495686389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 412971506 + ... + 412972755.

Almost surely, 2^516215163125 is an apocalyptic number.

It is an amenable number.

516215163125 is a deficient number, since it is larger than the sum of its proper divisors (128847305497).

516215163125 is an frugal number, since it uses more digits than its factorization.

516215163125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825944281 (or 825944266 counting only the distinct ones).

The product of its digits is 54000, while the sum is 38.

The spelling of 516215163125 in words is "five hundred sixteen billion, two hundred fifteen million, one hundred sixty-three thousand, one hundred twenty-five".