55205665620432 has 40 divisors (see below), whose sum is σ = 143206398192000. Its totient is φ = 18325532152320.

The previous prime is 55205665620403. The next prime is 55205665620467. The reversal of 55205665620432 is 23402656650255.

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 7 ways as a sum of consecutive naturals, for example, 2386125432 + ... + 2386148567.

It is an arithmetic number, because the mean of its divisors is an integer number (3580159954800).

Almost surely, 2^{55205665620432} is an apocalyptic number.

It is an amenable number.

55205665620432 is an abundant number, since it is smaller than the sum of its proper divisors (88000732571568).

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

55205665620432 is a wasteful number, since it uses less digits than its factorization.

55205665620432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772274251 (or 4772274245 counting only the distinct ones).

The product of its (nonzero) digits is 12960000, while the sum is 51.

The spelling of 55205665620432 in words is "fifty-five trillion, two hundred five billion, six hundred sixty-five million, six hundred twenty thousand, four hundred thirty-two".