545545545545 has 128 divisors (see below), whose sum is σ = 895913948160. Its totient is φ = 307929600000.

The previous prime is 545545545541. The next prime is 545545545577.

545545545545 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 545545545545 - 2² = 545545545541 is a prime.

545545545545 is a modest number, since divided by 545545545 gives 545 as remainder.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545545545541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 55095095 + ... + 55104995.

It is an arithmetic number, because the mean of its divisors is an integer number (6999327720).

Almost surely, 2^545545545545 is an apocalyptic number.

545545545545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

545545545545 is a deficient number, since it is larger than the sum of its proper divisors (350368402615).

545545545545 is a wasteful number, since it uses less digits than its factorization.

545545545545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10147.

The product of its digits is 100000000, while the sum is 56.

The spelling of 545545545545 in words is "five hundred forty-five billion, five hundred forty-five million, five hundred forty-five thousand, five hundred forty-five".