6557055561617 has 8 divisors (see below), whose sum is σ = 7153229357472. Its totient is φ = 5960894738400.

The previous prime is 6557055561601. The next prime is 6557055561629. The reversal of 6557055561617 is 7161655507556.

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

It is a cyclic number.

It is not a de Polignac number, because 6557055561617 - 2⁴ = 6557055561601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6557055521617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2170883 + ... + 4222184.

It is an arithmetic number, because the mean of its divisors is an integer number (894153669684).

Almost surely, 2^{6557055561617} is an apocalyptic number.

It is an amenable number.

6557055561617 is a deficient number, since it is larger than the sum of its proper divisors (596173795855).

6557055561617 is a wasteful number, since it uses less digits than its factorization.

6557055561617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6486319.

The product of its (nonzero) digits is 33075000, while the sum is 59.

The spelling of 6557055561617 in words is "six trillion, five hundred fifty-seven billion, fifty-five million, five hundred sixty-one thousand, six hundred seventeen".