516555665052 has 72 divisors (see below), whose sum is σ = 1484554965264. Its totient is φ = 138905722368.

The previous prime is 516555665051. The next prime is 516555665071. The reversal of 516555665052 is 250566555615.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 516555664986 and 516555665004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516555665051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25828123 + ... + 25848114.

It is an arithmetic number, because the mean of its divisors is an integer number (20618818962).

Almost surely, 2^516555665052 is an apocalyptic number.

It is an amenable number.

516555665052 is an abundant number, since it is smaller than the sum of its proper divisors (967999300212).

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

516555665052 is a wasteful number, since it uses less digits than its factorization.

516555665052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51676275 (or 51676266 counting only the distinct ones).

The product of its (nonzero) digits is 6750000, while the sum is 51.

The spelling of 516555665052 in words is "five hundred sixteen billion, five hundred fifty-five million, six hundred sixty-five thousand, fifty-two".