555665566555 has 8 divisors (see below), whose sum is σ = 727416741744. Its totient is φ = 404120412000.

The previous prime is 555665566537. The next prime is 555665566559.

555665566555 is nontrivially palindromic in base 10.

555665566555 is digitally balanced in base 2, because in such base 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 555665566555 - 2¹¹ = 555665564507 is a prime.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (555665566559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5051505096 + ... + 5051505205.

It is an arithmetic number, because the mean of its divisors is an integer number (90927092718).

Almost surely, 2^555665566555 is an apocalyptic number.

555665566555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

555665566555 is a deficient number, since it is larger than the sum of its proper divisors (171751175189).

555665566555 is a wasteful number, since it uses less digits than its factorization.

555665566555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10103010317.

The product of its digits is 506250000, while the sum is 64.

The spelling of 555665566555 in words is "five hundred fifty-five billion, six hundred sixty-five million, five hundred sixty-six thousand, five hundred fifty-five".