660352504 has 64 divisors (see below), whose sum is σ = 1474200000. Its totient is φ = 271315968.

The previous prime is 660352501. The next prime is 660352507. The reversal of 660352504 is 405253066.

It is an interprime number because it is at equal distance from previous prime (660352501) and next prime (660352507).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660352501) 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 15 ways as a sum of consecutive naturals, for example, 240612 + ... + 243340.

It is an arithmetic number, because the mean of its divisors is an integer number (23034375).

Almost surely, 2^660352504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 660352504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737100000).

660352504 is an abundant number, since it is smaller than the sum of its proper divisors (813847496).

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

660352504 is a wasteful number, since it uses less digits than its factorization.

660352504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2920 (or 2916 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 660352504 is about 25697.3248413137. The cubic root of 660352504 is about 870.8137469330.

The spelling of 660352504 in words is "six hundred sixty million, three hundred fifty-two thousand, five hundred four".