545664684 has 24 divisors (see below), whose sum is σ = 1276641520. Its totient is φ = 181399104.

The previous prime is 545664677. The next prime is 545664701. The reversal of 545664684 is 486466545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56479 + ... + 65430.

Almost surely, 2^545664684 is an apocalyptic number.

It is an amenable number.

545664684 is an abundant number, since it is smaller than the sum of its proper divisors (730976836).

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

545664684 is a wasteful number, since it uses less digits than its factorization.

545664684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122289 (or 122287 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 48.

The square root of 545664684 is about 23359.4666891177. The cubic root of 545664684 is about 817.1628521185.

The spelling of 545664684 in words is "five hundred forty-five million, six hundred sixty-four thousand, six hundred eighty-four".