516130640 has 20 divisors (see below), whose sum is σ = 1200003924. Its totient is φ = 206452224.

The previous prime is 516130627. The next prime is 516130651. The reversal of 516130640 is 46031615.

It can be written as a sum of positive squares in 2 ways, for example, as 334743616 + 181387024 = 18296^2 + 13468^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3225737 + ... + 3225896.

Almost surely, 2^516130640 is an apocalyptic number.

It is an amenable number.

516130640 is an abundant number, since it is smaller than the sum of its proper divisors (683873284).

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

516130640 is a wasteful number, since it uses less digits than its factorization.

516130640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6451646 (or 6451640 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 516130640 is about 22718.5087538773. The cubic root of 516130640 is about 802.1456152742.

The spelling of 516130640 in words is "five hundred sixteen million, one hundred thirty thousand, six hundred forty".