5556406632642 has 64 divisors (see below), whose sum is σ = 12590871216000. Its totient is φ = 1815838223040.

The previous prime is 5556406632641. The next prime is 5556406632653. The reversal of 5556406632642 is 2462366046555.

5556406632642 is a `hidden beast` number, since 5 + 5 + 564 + 0 + 6 + 6 + 32 + 6 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5556406632641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1736017 + ... + 3758532.

It is an arithmetic number, because the mean of its divisors is an integer number (196732362750).

Almost surely, 2^{5556406632642} is an apocalyptic number.

5556406632642 is an abundant number, since it is smaller than the sum of its proper divisors (7034464583358).

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

5556406632642 is a wasteful number, since it uses less digits than its factorization.

5556406632642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494928 (or 5494922 counting only the distinct ones).

The product of its (nonzero) digits is 31104000, while the sum is 54.

The spelling of 5556406632642 in words is "five trillion, five hundred fifty-six billion, four hundred six million, six hundred thirty-two thousand, six hundred forty-two".