660530004 has 24 divisors (see below), whose sum is σ = 1542468480. Its totient is φ = 220000704.

The previous prime is 660529999. The next prime is 660530011. The reversal of 660530004 is 400035066.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5884 + ... + 36819.

It is an arithmetic number, because the mean of its divisors is an integer number (64269520).

Almost surely, 2^660530004 is an apocalyptic number.

It is an amenable number.

660530004 is an abundant number, since it is smaller than the sum of its proper divisors (881938476).

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

660530004 is a wasteful number, since it uses less digits than its factorization.

660530004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43999 (or 43997 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 660530004 is about 25700.7782761534. The cubic root of 660530004 is about 870.8917636448.

The spelling of 660530004 in words is "six hundred sixty million, five hundred thirty thousand, four".