63660032 has 56 divisors (see below), whose sum is σ = 134340600. Its totient is φ = 30081024.

The previous prime is 63660031. The next prime is 63660041. The reversal of 63660032 is 23006636.

It is a happy number.

It is a taxicab number since it can be written as a sum of two cubes in more than one way. Here 63660032 = 116³ + 396³ = 240³ + 368³.

It is a junction number, because it is equal to n+sod(n) for n = 63659983 and 63660010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63660031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155444 + ... + 155852.

Almost surely, 2^63660032 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 63660032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67170300).

63660032 is an abundant number, since it is smaller than the sum of its proper divisors (70680568).

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

63660032 is an equidigital number, since it uses as much as digits as its factorization.

63660032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 63660032 is about 7978.7237074610. The cubic root of 63660032 is about 399.2904755150.

Adding to 63660032 its reverse (23006636), we get a palindrome (86666668).

The spelling of 63660032 in words is "sixty-three million, six hundred sixty thousand, thirty-two".