32065664 has 32 divisors (see below), whose sum is σ = 64851600. Its totient is φ = 15789312.

The previous prime is 32065661. The next prime is 32065667. The reversal of 32065664 is 46656023.

It is an interprime number because it is at equal distance from previous prime (32065661) and next prime (32065667).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 32065664.

It is not an unprimeable number, because it can be changed into a prime (32065661) 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, 6707 + ... + 10445.

Almost surely, 2^32065664 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 32065664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32425800).

32065664 is an abundant number, since it is smaller than the sum of its proper divisors (32785936).

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

32065664 is an equidigital number, since it uses as much as digits as its factorization.

32065664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3820 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 32065664 is about 5662.6552075859. The cubic root of 32065664 is about 317.6972184916.

The spelling of 32065664 in words is "thirty-two million, sixty-five thousand, six hundred sixty-four".