516505551068 has 48 divisors (see below), whose sum is σ = 993906819360. Its totient is φ = 233387890944.

The previous prime is 516505550999. The next prime is 516505551071. The reversal of 516505551068 is 860155505615.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1086398 + ... + 1487706.

It is an arithmetic number, because the mean of its divisors is an integer number (20706392070).

Almost surely, 2^516505551068 is an apocalyptic number.

It is an amenable number.

516505551068 is a deficient number, since it is larger than the sum of its proper divisors (477401268292).

516505551068 is a wasteful number, since it uses less digits than its factorization.

516505551068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401846 (or 401844 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 47.

The spelling of 516505551068 in words is "five hundred sixteen billion, five hundred five million, five hundred fifty-one thousand, sixty-eight".