660224004 has 48 divisors (see below), whose sum is σ = 1726003776. Its totient is φ = 194659200.

The previous prime is 660224003. The next prime is 660224011. The reversal of 660224004 is 400422066.

It is not an unprimeable number, because it can be changed into a prime (660224003) 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, 62707 + ... + 72474.

It is an arithmetic number, because the mean of its divisors is an integer number (35958412).

Almost surely, 2^660224004 is an apocalyptic number.

It is an amenable number.

660224004 is an abundant number, since it is smaller than the sum of its proper divisors (1065779772).

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

660224004 is a wasteful number, since it uses less digits than its factorization.

660224004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135236 (or 135234 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 660224004 is about 25694.8244594121. The cubic root of 660224004 is about 870.7572585045.

The spelling of 660224004 in words is "six hundred sixty million, two hundred twenty-four thousand, four".