55540466404555 has 64 divisors (see below), whose sum is σ = 78884515353600. Its totient is φ = 37109644992000.

The previous prime is 55540466404529. The next prime is 55540466404609.

55540466404555 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55540466404555 - 2⁴¹ = 53341443149003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55540466404555.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1609960 + ... + 10661749.

It is an arithmetic number, because the mean of its divisors is an integer number (1232570552400).

Almost surely, 2^{55540466404555} is an apocalyptic number.

55540466404555 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55540466404555 is a deficient number, since it is larger than the sum of its proper divisors (23344048949045).

55540466404555 is a wasteful number, since it uses less digits than its factorization.

55540466404555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12271876.

The product of its (nonzero) digits is 144000000, while the sum is 58.

The spelling of 55540466404555 in words is "fifty-five trillion, five hundred forty billion, four hundred sixty-six million, four hundred four thousand, five hundred fifty-five".