660536352 has 72 divisors (see below), whose sum is σ = 2146749696. Its totient is φ = 188724096.

The previous prime is 660536351. The next prime is 660536381. The reversal of 660536352 is 253635066.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (660536351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161808 + ... + 165839.

It is an arithmetic number, because the mean of its divisors is an integer number (29815968).

Almost surely, 2^660536352 is an apocalyptic number.

It is an amenable number.

660536352 is an abundant number, since it is smaller than the sum of its proper divisors (1486213344).

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

660536352 is a wasteful number, since it uses less digits than its factorization.

660536352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327670 (or 327659 counting only the distinct ones).

The product of its (nonzero) digits is 97200, while the sum is 36.

The square root of 660536352 is about 25700.9017740623. The cubic root of 660536352 is about 870.8945535272.

The spelling of 660536352 in words is "six hundred sixty million, five hundred thirty-six thousand, three hundred fifty-two".