6556421000617 has 4 divisors (see below), whose sum is σ = 6556859660176. Its totient is φ = 6555982341060.

The previous prime is 6556421000611. The next prime is 6556421000627. The reversal of 6556421000617 is 7160001246556.

6556421000617 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6556421000617 - 2¹⁵ = 6556420967849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6556421000611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219307359 + ... + 219337252.

It is an arithmetic number, because the mean of its divisors is an integer number (1639214915044).

Almost surely, 2^{6556421000617} is an apocalyptic number.

It is an amenable number.

6556421000617 is a deficient number, since it is larger than the sum of its proper divisors (438659559).

6556421000617 is a wasteful number, since it uses less digits than its factorization.

6556421000617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438659558.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 6556421000617 in words is "six trillion, five hundred fifty-six billion, four hundred twenty-one million, six hundred seventeen", and thus it is an aban number.