545911566 has 24 divisors (see below), whose sum is σ = 1099405944. Its totient is φ = 180709920.

The previous prime is 545911549. The next prime is 545911577. The reversal of 545911566 is 665119545.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 769620 + ... + 770328.

It is an arithmetic number, because the mean of its divisors is an integer number (45808581).

Almost surely, 2^545911566 is an apocalyptic number.

545911566 is an abundant number, since it is smaller than the sum of its proper divisors (553494378).

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

545911566 is an equidigital number, since it uses as much as digits as its factorization.

545911566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604 (or 895 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The square root of 545911566 is about 23364.7505015568. The cubic root of 545911566 is about 817.2860733244.

The spelling of 545911566 in words is "five hundred forty-five million, nine hundred eleven thousand, five hundred sixty-six".