55556116672 has 28 divisors (see below), whose sum is σ = 125993337040. Its totient is φ = 23809764096.

The previous prime is 55556116667. The next prime is 55556116691. The reversal of 55556116672 is 27661165555.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (28).

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 3 ways as a sum of consecutive naturals, for example, 62004147 + ... + 62005042.

Almost surely, 2^55556116672 is an apocalyptic number.

It is an amenable number.

55556116672 is an abundant number, since it is smaller than the sum of its proper divisors (70437220368).

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

55556116672 is a wasteful number, since it uses less digits than its factorization.

55556116672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124009208 (or 124009198 counting only the distinct ones).

The product of its digits is 1890000, while the sum is 49.

The spelling of 55556116672 in words is "fifty-five billion, five hundred fifty-six million, one hundred sixteen thousand, six hundred seventy-two".