5556623646 has 32 divisors (see below), whose sum is σ = 13010635008. Its totient is φ = 1548884160.

The previous prime is 5556623581. The next prime is 5556623671. The reversal of 5556623646 is 6463266555.

It is a junction number, because it is equal to n+sod(n) for n = 5556623595 and 5556623604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1611700 + ... + 1615143.

It is an arithmetic number, because the mean of its divisors is an integer number (406582344).

Almost surely, 2^5556623646 is an apocalyptic number.

5556623646 is an abundant number, since it is smaller than the sum of its proper divisors (7454011362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5556623646 is a wasteful number, since it uses less digits than its factorization.

5556623646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226896.

The product of its digits is 3888000, while the sum is 48.

The square root of 5556623646 is about 74542.7638741682. The cubic root of 5556623646 is about 1771.2111095777.

The spelling of 5556623646 in words is "five billion, five hundred fifty-six million, six hundred twenty-three thousand, six hundred forty-six".