545080660 has 24 divisors (see below), whose sum is σ = 1155175560. Its totient is φ = 216031104.

The previous prime is 545080643. The next prime is 545080693. The reversal of 545080660 is 66080545.

It can be written as a sum of positive squares in 4 ways, for example, as 1444804 + 543635856 = 1202^2 + 23316^2 .

It is a super-2 number, since 2×545080660² = 594225851812071200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 122839 + ... + 127198.

It is an arithmetic number, because the mean of its divisors is an integer number (48132315).

Almost surely, 2^545080660 is an apocalyptic number.

It is an amenable number.

545080660 is an abundant number, since it is smaller than the sum of its proper divisors (610094900).

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

545080660 is a wasteful number, since it uses less digits than its factorization.

545080660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250155 (or 250153 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 545080660 is about 23346.9625433374. The cubic root of 545080660 is about 816.8712120345.

The spelling of 545080660 in words is "five hundred forty-five million, eighty thousand, six hundred sixty".