6551106555005 has 8 divisors (see below), whose sum is σ = 7969017289272. Its totient is φ = 5169092295168.

The previous prime is 6551106554999. The next prime is 6551106555067. The reversal of 6551106555005 is 5005556011556.

It can be written as a sum of positive squares in 4 ways, for example, as 313445459044 + 6237661095961 = 559862^2 + 2497531^2 .

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 6551106555005 - 2³⁸ = 6276228648061 is a prime.

It is a Duffinian number.

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, 8974118204 + ... + 8974118933.

It is an arithmetic number, because the mean of its divisors is an integer number (996127161159).

Almost surely, 2^{6551106555005} is an apocalyptic number.

It is an amenable number.

6551106555005 is a deficient number, since it is larger than the sum of its proper divisors (1417910734267).

6551106555005 is a wasteful number, since it uses less digits than its factorization.

6551106555005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17948237215.

The product of its (nonzero) digits is 562500, while the sum is 44.

The spelling of 6551106555005 in words is "six trillion, five hundred fifty-one billion, one hundred six million, five hundred fifty-five thousand, five".