516551044640 has 48 divisors (see below), whose sum is σ = 1220436383040. Its totient is φ = 206606104320.

The previous prime is 516551044601. The next prime is 516551044651. The reversal of 516551044640 is 46440155615.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2377691 + ... + 2585829.

It is an arithmetic number, because the mean of its divisors is an integer number (25425757980).

Almost surely, 2^516551044640 is an apocalyptic number.

It is an amenable number.

516551044640 is an abundant number, since it is smaller than the sum of its proper divisors (703885338400).

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

516551044640 is a wasteful number, since it uses less digits than its factorization.

516551044640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223665 (or 223657 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 516551044640 in words is "five hundred sixteen billion, five hundred fifty-one million, forty-four thousand, six hundred forty".