515055555616 has 48 divisors (see below), whose sum is σ = 1159033518720. Its totient is φ = 220707901440.

The previous prime is 515055555613. The next prime is 515055555617. The reversal of 515055555616 is 616555550515.

It is a self number, because there is not a number n which added to its sum of digits gives 515055555616.

It is not an unprimeable number, because it can be changed into a prime (515055555613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524021 + ... + 1831051.

It is an arithmetic number, because the mean of its divisors is an integer number (24146531640).

Almost surely, 2^515055555616 is an apocalyptic number.

515055555616 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

515055555616 is an abundant number, since it is smaller than the sum of its proper divisors (643977963104).

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

515055555616 is a wasteful number, since it uses less digits than its factorization.

515055555616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314537 (or 314529 counting only the distinct ones).

The product of its (nonzero) digits is 2812500, while the sum is 49.

The spelling of 515055555616 in words is "five hundred fifteen billion, fifty-five million, five hundred fifty-five thousand, six hundred sixteen".