55566673333920 has 288 divisors, whose sum is σ = 217737096071040. Its totient is φ = 12640759326720.

The previous prime is 55566673333891. The next prime is 55566673333933. The reversal of 55566673333920 is 2933337666555.

55566673333920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10936075 + ... + 15189834.

It is an arithmetic number, because the mean of its divisors is an integer number (756031583580).

Almost surely, 2^{55566673333920} is an apocalyptic number.

It is an amenable number.

55566673333920 is an abundant number, since it is smaller than the sum of its proper divisors (162170422737120).

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

55566673333920 is a wasteful number, since it uses less digits than its factorization.

55566673333920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26126148 (or 26126137 counting only the distinct ones).

The product of its (nonzero) digits is 275562000, while the sum is 63.

The spelling of 55566673333920 in words is "fifty-five trillion, five hundred sixty-six billion, six hundred seventy-three million, three hundred thirty-three thousand, nine hundred twenty".