55404105003818 has 32 divisors (see below), whose sum is σ = 86578914216960. Its totient is φ = 26558258408640.

The previous prime is 55404105003817. The next prime is 55404105003827. The reversal of 55404105003818 is 81830050140455.

It is a super-2 number, since 2×55404105003818² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55404105003811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7580828 + ... + 12972168.

It is an arithmetic number, because the mean of its divisors is an integer number (2705591069280).

Almost surely, 2^{55404105003818} is an apocalyptic number.

55404105003818 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55404105003818 is a deficient number, since it is larger than the sum of its proper divisors (31174809213142).

55404105003818 is a wasteful number, since it uses less digits than its factorization.

55404105003818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5392622.

The product of its (nonzero) digits is 384000, while the sum is 44.

The spelling of 55404105003818 in words is "fifty-five trillion, four hundred four billion, one hundred five million, three thousand, eight hundred eighteen".