54558544585545 has 96 divisors (see below), whose sum is σ = 126972612958464. Its totient is φ = 20929551552000.

The previous prime is 54558544585541. The next prime is 54558544585579.

It is a happy number.

54558544585545 is a `hidden beast` number, since 5 + 4 + 5 + 5 + 85 + 4 + 458 + 55 + 45 = 666.

54558544585545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 54558544585545 - 2² = 54558544585541 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54558544585541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 605555406 + ... + 605645495.

It is an arithmetic number, because the mean of its divisors is an integer number (1322631384984).

Almost surely, 2^{54558544585545} is an apocalyptic number.

54558544585545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54558544585545 is an abundant number, since it is smaller than the sum of its proper divisors (72414068372919).

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

54558544585545 is a wasteful number, since it uses less digits than its factorization.

54558544585545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211200943 (or 1211200940 counting only the distinct ones).

The product of its digits is 6400000000, while the sum is 72.

The spelling of 54558544585545 in words is "fifty-four trillion, five hundred fifty-eight billion, five hundred forty-four million, five hundred eighty-five thousand, five hundred forty-five".