556683323386655 has 4 divisors (see below), whose sum is σ = 668019988063992. Its totient is φ = 445346658709320.

The previous prime is 556683323386649. The next prime is 556683323386699.

556683323386655 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 556683323386655 - 2⁶ = 556683323386591 is a prime.

It is a super-2 number, since 2×556683323386655² (a number of 30 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 55668332338661 + ... + 55668332338670.

It is an arithmetic number, because the mean of its divisors is an integer number (167004997015998).

Almost surely, 2^{556683323386655} is an apocalyptic number.

556683323386655 is a deficient number, since it is larger than the sum of its proper divisors (111336664677337).

556683323386655 is a wasteful number, since it uses less digits than its factorization.

556683323386655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111336664677336.

The product of its digits is 8398080000, while the sum is 74.

The spelling of 556683323386655 in words is "five hundred fifty-six trillion, six hundred eighty-three billion, three hundred twenty-three million, three hundred eighty-six thousand, six hundred fifty-five".