55538818126678 has 8 divisors (see below), whose sum is σ = 83308359401280. Its totient is φ = 27769364992920.

The previous prime is 55538818126667. The next prime is 55538818126679. The reversal of 55538818126678 is 87662181883555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55538818126678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55538818126679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20436733 + ... + 22994296.

It is an arithmetic number, because the mean of its divisors is an integer number (10413544925160).

Almost surely, 2^{55538818126678} is an apocalyptic number.

55538818126678 is a deficient number, since it is larger than the sum of its proper divisors (27769541274602).

55538818126678 is a wasteful number, since it uses less digits than its factorization.

55538818126678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44070422.

The product of its digits is 774144000, while the sum is 73.

The spelling of 55538818126678 in words is "fifty-five trillion, five hundred thirty-eight billion, eight hundred eighteen million, one hundred twenty-six thousand, six hundred seventy-eight".