545650404056545 has 4 divisors (see below), whose sum is σ = 654780484867860. Its totient is φ = 436520323245232.

The previous prime is 545650404056509. The next prime is 545650404056567.

545650404056545 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 171877317819601 + 373773086236944 = 13110199^2 + 19333212^2 .

It is a cyclic number.

It is not a de Polignac number, because 545650404056545 - 2⁹ = 545650404056033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545650404056545.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54565040405650 + ... + 54565040405659.

It is an arithmetic number, because the mean of its divisors is an integer number (163695121216965).

Almost surely, 2^{545650404056545} is an apocalyptic number.

It is an amenable number.

545650404056545 is a deficient number, since it is larger than the sum of its proper divisors (109130080811315).

545650404056545 is a wasteful number, since it uses less digits than its factorization.

545650404056545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109130080811314.

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

The spelling of 545650404056545 in words is "five hundred forty-five trillion, six hundred fifty billion, four hundred four million, fifty-six thousand, five hundred forty-five".