32067532720 has 80 divisors (see below), whose sum is σ = 78522474240. Its totient is φ = 12145496832.

The previous prime is 32067532699. The next prime is 32067532723. The reversal of 32067532720 is 2723576023.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 32067532720.

It is not an unprimeable number, because it can be changed into a prime (32067532723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3678607 + ... + 3687313.

It is an arithmetic number, because the mean of its divisors is an integer number (981530928).

Almost surely, 2^32067532720 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 32067532720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39261237120).

32067532720 is an abundant number, since it is smaller than the sum of its proper divisors (46454941520).

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

32067532720 is a wasteful number, since it uses less digits than its factorization.

32067532720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11162 (or 11156 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 37.

The spelling of 32067532720 in words is "thirty-two billion, sixty-seven million, five hundred thirty-two thousand, seven hundred twenty".