543406664 has 32 divisors (see below), whose sum is σ = 1036697400. Its totient is φ = 266995200.

The previous prime is 543406639. The next prime is 543406687. The reversal of 543406664 is 466604345.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 497736100 + 45670564 = 22310^2 + 6758^2 .

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, 108242 + ... + 113150.

Almost surely, 2^543406664 is an apocalyptic number.

It is an amenable number.

543406664 is a deficient number, since it is larger than the sum of its proper divisors (493290736).

543406664 is a wasteful number, since it uses less digits than its factorization.

543406664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5153 (or 5149 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 543406664 is about 23311.0845736529. The cubic root of 543406664 is about 816.0341240696.

The spelling of 543406664 in words is "five hundred forty-three million, four hundred six thousand, six hundred sixty-four".