55554174621656 has 16 divisors (see below), whose sum is σ = 104164473018840. Its totient is φ = 27776981816640.

The previous prime is 55554174621623. The next prime is 55554174621667. The reversal of 55554174621656 is 65612647145555.

It is a happy number.

55554174621656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 10925885 + ... + 15181676.

Almost surely, 2^{55554174621656} is an apocalyptic number.

It is an amenable number.

55554174621656 is a deficient number, since it is larger than the sum of its proper divisors (48610298397184).

55554174621656 is a wasteful number, since it uses less digits than its factorization.

55554174621656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26373554 (or 26373550 counting only the distinct ones).

The product of its digits is 151200000, while the sum is 62.

The spelling of 55554174621656 in words is "fifty-five trillion, five hundred fifty-four billion, one hundred seventy-four million, six hundred twenty-one thousand, six hundred fifty-six".