545554455546 has 64 divisors (see below), whose sum is σ = 1100800419840. Its totient is φ = 180245897280.

The previous prime is 545554455521. The next prime is 545554455583. The reversal of 545554455546 is 645554455545.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347264941 + ... + 347266511.

It is an arithmetic number, because the mean of its divisors is an integer number (17200006560).

Almost surely, 2^545554455546 is an apocalyptic number.

545554455546 is an abundant number, since it is smaller than the sum of its proper divisors (555245964294).

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

545554455546 is a wasteful number, since it uses less digits than its factorization.

545554455546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811.

The product of its digits is 120000000, while the sum is 57.

Subtracting 545554455546 from its reverse (645554455545), we obtain a palindrome (99999999999).

The spelling of 545554455546 in words is "five hundred forty-five billion, five hundred fifty-four million, four hundred fifty-five thousand, five hundred forty-six".