660032793504 has 72 divisors (see below), whose sum is σ = 2145106585440. Its totient is φ = 188580797568.

The previous prime is 660032793503. The next prime is 660032793527. The reversal of 660032793504 is 405397230066.

660032793504 is a `hidden beast` number, since 6 + 600 + 3 + 2 + 7 + 9 + 35 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 660032793504.

It is not an unprimeable number, because it can be changed into a prime (660032793503) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 163696594 + ... + 163700625.

It is an arithmetic number, because the mean of its divisors is an integer number (29793147020).

Almost surely, 2^660032793504 is an apocalyptic number.

It is an amenable number.

660032793504 is an abundant number, since it is smaller than the sum of its proper divisors (1485073791936).

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

660032793504 is a wasteful number, since it uses less digits than its factorization.

660032793504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327397242 (or 327397231 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 45.

The spelling of 660032793504 in words is "six hundred sixty billion, thirty-two million, seven hundred ninety-three thousand, five hundred four".