556616066615 has 16 divisors (see below), whose sum is σ = 763479941952. Its totient is φ = 381619206144.

The previous prime is 556616066561. The next prime is 556616066623. The reversal of 556616066615 is 516660616655.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 556616066615 - 2¹⁰ = 556616065591 is a prime.

It is a super-2 number, since 2×556616066615² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1033004 + ... + 1476593.

It is an arithmetic number, because the mean of its divisors is an integer number (47717496372).

Almost surely, 2^556616066615 is an apocalyptic number.

556616066615 is a deficient number, since it is larger than the sum of its proper divisors (206863875337).

556616066615 is a wasteful number, since it uses less digits than its factorization.

556616066615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2515946.

The product of its (nonzero) digits is 5832000, while the sum is 53.

The spelling of 556616066615 in words is "five hundred fifty-six billion, six hundred sixteen million, sixty-six thousand, six hundred fifteen".