545223707322545 has 4 divisors (see below), whose sum is σ = 654268448787060. Its totient is φ = 436178965858032.

The previous prime is 545223707322529. The next prime is 545223707322641.

545223707322545 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 163572435727936 + 381651271594609 = 12789544^2 + 19535897^2 .

It is a cyclic number.

It is not a de Polignac number, because 545223707322545 - 2⁴ = 545223707322529 is a prime.

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, 54522370732250 + ... + 54522370732259.

It is an arithmetic number, because the mean of its divisors is an integer number (163567112196765).

Almost surely, 2^{545223707322545} is an apocalyptic number.

It is an amenable number.

545223707322545 is a deficient number, since it is larger than the sum of its proper divisors (109044741464515).

545223707322545 is a wasteful number, since it uses less digits than its factorization.

545223707322545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109044741464514.

The product of its (nonzero) digits is 70560000, while the sum is 56.

The spelling of 545223707322545 in words is "five hundred forty-five trillion, two hundred twenty-three billion, seven hundred seven million, three hundred twenty-two thousand, five hundred forty-five".