55321501616404 has 48 divisors (see below), whose sum is σ = 99529919191360. Its totient is φ = 26895451714560.

The previous prime is 55321501616389. The next prime is 55321501616411. The reversal of 55321501616404 is 40461610512355.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18970279 + ... + 21691345.

Almost surely, 2^{55321501616404} is an apocalyptic number.

It is an amenable number.

55321501616404 is a deficient number, since it is larger than the sum of its proper divisors (44208417574956).

55321501616404 is a wasteful number, since it uses less digits than its factorization.

55321501616404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722088 (or 2722086 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 55321501616404 in words is "fifty-five trillion, three hundred twenty-one billion, five hundred one million, six hundred sixteen thousand, four hundred four".