545660980 has 24 divisors (see below), whose sum is σ = 1146349512. Its totient is φ = 218176512.

The previous prime is 545660963. The next prime is 545660989. The reversal of 545660980 is 89066545.

It can be written as a sum of positive squares in 4 ways, for example, as 7606564 + 538054416 = 2758^2 + 23196^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545660989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72264 + ... + 79456.

It is an arithmetic number, because the mean of its divisors is an integer number (47764563).

Almost surely, 2^545660980 is an apocalyptic number.

It is an amenable number.

545660980 is an abundant number, since it is smaller than the sum of its proper divisors (600688532).

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

545660980 is a wasteful number, since it uses less digits than its factorization.

545660980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995 (or 10993 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 43.

The square root of 545660980 is about 23359.3874063512. The cubic root of 545660980 is about 817.1610031331.

The spelling of 545660980 in words is "five hundred forty-five million, six hundred sixty thousand, nine hundred eighty".