556516556565 has 8 divisors (see below), whose sum is σ = 890426490528. Its totient is φ = 296808830160.

The previous prime is 556516556503. The next prime is 556516556573. The reversal of 556516556565 is 565655615655.

It is a happy number.

556516556565 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 556516556565 - 2²² = 556512362261 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556516556499 and 556516556508.

It is a congruent number.

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, 18550551871 + ... + 18550551900.

It is an arithmetic number, because the mean of its divisors is an integer number (111303311316).

Almost surely, 2^556516556565 is an apocalyptic number.

It is an amenable number.

556516556565 is a deficient number, since it is larger than the sum of its proper divisors (333909933963).

556516556565 is a wasteful number, since it uses less digits than its factorization.

556516556565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37101103779.

The product of its digits is 101250000, while the sum is 60.

The spelling of 556516556565 in words is "five hundred fifty-six billion, five hundred sixteen million, five hundred fifty-six thousand, five hundred sixty-five".