545665630 has 32 divisors (see below), whose sum is σ = 1008845280. Its totient is φ = 212419200.

The previous prime is 545665577. The next prime is 545665633. The reversal of 545665630 is 36566545.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545665633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55012 + ... + 64168.

It is an arithmetic number, because the mean of its divisors is an integer number (31526415).

Almost surely, 2^545665630 is an apocalyptic number.

545665630 is a deficient number, since it is larger than the sum of its proper divisors (463179650).

545665630 is a wasteful number, since it uses less digits than its factorization.

545665630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324.

The product of its (nonzero) digits is 324000, while the sum is 40.

The square root of 545665630 is about 23359.4869378589. The cubic root of 545665630 is about 817.1633243472.

The spelling of 545665630 in words is "five hundred forty-five million, six hundred sixty-five thousand, six hundred thirty".