55218843735384 has 64 divisors (see below), whose sum is σ = 167048602905600. Its totient is φ = 14848764701184.

The previous prime is 55218843735361. The next prime is 55218843735421. The reversal of 55218843735384 is 48353734881255.

It is a hoax number, since the sum of its digits (66) coincides with the sum of the digits of its distinct prime factors.

It is a congruent 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, 9667161664 + ... + 9667167375.

It is an arithmetic number, because the mean of its divisors is an integer number (2610134420400).

Almost surely, 2^{55218843735384} is an apocalyptic number.

It is an amenable number.

55218843735384 is an abundant number, since it is smaller than the sum of its proper divisors (111829759170216).

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

55218843735384 is a wasteful number, since it uses less digits than its factorization.

55218843735384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19334329072 (or 19334329068 counting only the distinct ones).

The product of its digits is 387072000, while the sum is 66.

The spelling of 55218843735384 in words is "fifty-five trillion, two hundred eighteen billion, eight hundred forty-three million, seven hundred thirty-five thousand, three hundred eighty-four".