516661605050 has 12 divisors (see below), whose sum is σ = 960990585486. Its totient is φ = 206664642000.

The previous prime is 516661604947. The next prime is 516661605067. The reversal of 516661605050 is 50506166615.

It can be written as a sum of positive squares in 3 ways, for example, as 287629488721 + 229032116329 = 536311^2 + 478573^2 .

It is a junction number, because it is equal to n+sod(n) for n = 516661604989 and 516661605007.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5166616001 + ... + 5166616100.

Almost surely, 2^516661605050 is an apocalyptic number.

516661605050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

516661605050 is a deficient number, since it is larger than the sum of its proper divisors (444328980436).

516661605050 is a wasteful number, since it uses less digits than its factorization.

516661605050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10333232113 (or 10333232108 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 516661605050 in words is "five hundred sixteen billion, six hundred sixty-one million, six hundred five thousand, fifty".