545566168873 has 24 divisors (see below), whose sum is σ = 601019685000. Its totient is φ = 494855961600.

The previous prime is 545566168871. The next prime is 545566168909. The reversal of 545566168873 is 378861665545.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25764102144 + 519802066729 = 160512^2 + 720973^2 .

It is not a de Polignac number, because 545566168873 - 2¹ = 545566168871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545566168871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124074711 + ... + 124079107.

It is an arithmetic number, because the mean of its divisors is an integer number (25042486875).

Almost surely, 2^545566168873 is an apocalyptic number.

It is an amenable number.

545566168873 is a deficient number, since it is larger than the sum of its proper divisors (55453516127).

545566168873 is a wasteful number, since it uses less digits than its factorization.

545566168873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489 (or 6478 counting only the distinct ones).

The product of its digits is 145152000, while the sum is 64.

The spelling of 545566168873 in words is "five hundred forty-five billion, five hundred sixty-six million, one hundred sixty-eight thousand, eight hundred seventy-three".