556355545553655 has 48 divisors (see below), whose sum is σ = 990421278210624. Its totient is φ = 288701038771200.

The previous prime is 556355545553593. The next prime is 556355545553657.

It is a happy number.

556355545553655 is a `hidden beast` number, since 5 + 5 + 6 + 3 + 5 + 5 + 5 + 4 + 5 + 553 + 65 + 5 = 666.

556355545553655 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 556355545553655 - 2⁸ = 556355545553399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556355545553657) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 210486255 + ... + 213113055.

It is an arithmetic number, because the mean of its divisors is an integer number (20633776629388).

Almost surely, 2^{556355545553655} is an apocalyptic number.

556355545553655 is a deficient number, since it is larger than the sum of its proper divisors (434065732656969).

556355545553655 is a wasteful number, since it uses less digits than its factorization.

556355545553655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754056 (or 2754053 counting only the distinct ones).

The product of its digits is 12656250000, while the sum is 72.

The spelling of 556355545553655 in words is "five hundred fifty-six trillion, three hundred fifty-five billion, five hundred forty-five million, five hundred fifty-three thousand, six hundred fifty-five".