556447744655 has 8 divisors (see below), whose sum is σ = 728440683984. Its totient is φ = 404689268800.

The previous prime is 556447744649. The next prime is 556447744661.

556447744655 is nontrivially palindromic in base 10.

556447744655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (556447744649) and next prime (556447744661).

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

It is not a de Polignac number, because 556447744655 - 2³⁰ = 555374002831 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, 5058615806 + ... + 5058615915.

It is an arithmetic number, because the mean of its divisors is an integer number (91055085498).

Almost surely, 2^556447744655 is an apocalyptic number.

556447744655 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

556447744655 is a deficient number, since it is larger than the sum of its proper divisors (171992939329).

556447744655 is a wasteful number, since it uses less digits than its factorization.

556447744655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10117231737.

The product of its digits is 282240000, while the sum is 62.

The spelling of 556447744655 in words is "five hundred fifty-six billion, four hundred forty-seven million, seven hundred forty-four thousand, six hundred fifty-five".