6550005551555 has 8 divisors (see below), whose sum is σ = 7948321344000. Its totient is φ = 5181127986496.

The previous prime is 6550005551549. The next prime is 6550005551561. The reversal of 6550005551555 is 5551555000556.

It is an interprime number because it is at equal distance from previous prime (6550005551549) and next prime (6550005551561).

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 6550005551555 - 2¹⁰ = 6550005550531 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 7359556355 + ... + 7359557244.

It is an arithmetic number, because the mean of its divisors is an integer number (993540168000).

Almost surely, 2^{6550005551555} is an apocalyptic number.

6550005551555 is a deficient number, since it is larger than the sum of its proper divisors (1398315792445).

6550005551555 is a wasteful number, since it uses less digits than its factorization.

6550005551555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14719113693.

The product of its (nonzero) digits is 2343750, while the sum is 47.

The spelling of 6550005551555 in words is "six trillion, five hundred fifty billion, five million, five hundred fifty-one thousand, five hundred fifty-five".