55318973745786 has 32 divisors (see below), whose sum is σ = 110921770504320. Its totient is φ = 18392358384576.

The previous prime is 55318973745757. The next prime is 55318973745821. The reversal of 55318973745786 is 68754737981355.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51970020 + ... + 53023776.

It is an arithmetic number, because the mean of its divisors is an integer number (3466305328260).

Almost surely, 2^{55318973745786} is an apocalyptic number.

55318973745786 is an abundant number, since it is smaller than the sum of its proper divisors (55602796758534).

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

55318973745786 is a wasteful number, since it uses less digits than its factorization.

55318973745786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076198.

The product of its digits is 5334336000, while the sum is 78.

The spelling of 55318973745786 in words is "fifty-five trillion, three hundred eighteen billion, nine hundred seventy-three million, seven hundred forty-five thousand, seven hundred eighty-six".