515051655656 has 16 divisors (see below), whose sum is σ = 965817820800. Its totient is φ = 257500236784.

The previous prime is 515051655653. The next prime is 515051655659. The reversal of 515051655656 is 656556150515.

It is an interprime number because it is at equal distance from previous prime (515051655653) and next prime (515051655659).

It is not an unprimeable number, because it can be changed into a prime (515051655653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3113210 + ... + 3274473.

It is an arithmetic number, because the mean of its divisors is an integer number (60363613800).

Almost surely, 2^515051655656 is an apocalyptic number.

It is an amenable number.

515051655656 is a deficient number, since it is larger than the sum of its proper divisors (450766165144).

515051655656 is a wasteful number, since it uses less digits than its factorization.

515051655656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6397768 (or 6397764 counting only the distinct ones).

The product of its (nonzero) digits is 3375000, while the sum is 50.

The spelling of 515051655656 in words is "five hundred fifteen billion, fifty-one million, six hundred fifty-five thousand, six hundred fifty-six".