54645444454644 has 30 divisors (see below), whose sum is σ = 142853985967154. Its totient is φ = 18215148151440.

The previous prime is 54645444454639. The next prime is 54645444454663. The reversal of 54645444454644 is 44645444454645.

It is a happy number.

54645444454644 is a `hidden beast` number, since 5 + 4 + 6 + 4 + 5 + 4 + 4 + 44 + 546 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 54533232854244 + 112211600400 = 7384662^2 + 334980^2 .

It is a super-2 number, since 2×54645444454644² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 84329389267 + ... + 84329389914.

Almost surely, 2^{54645444454644} is an apocalyptic number.

54645444454644 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

54645444454644 is an abundant number, since it is smaller than the sum of its proper divisors (88208541512510).

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

54645444454644 is a wasteful number, since it uses less digits than its factorization.

54645444454644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168658779197 (or 168658779186 counting only the distinct ones).

The product of its digits is 1179648000, while the sum is 63.

Subtracting from 54645444454644 its reverse (44645444454645), we obtain a palindrome (9999999999999).

The spelling of 54645444454644 in words is "fifty-four trillion, six hundred forty-five billion, four hundred forty-four million, four hundred fifty-four thousand, six hundred forty-four".