32722520640 has 112 divisors (see below), whose sum is σ = 103950869568. Its totient is φ = 8721229824.

The previous prime is 32722520609. The next prime is 32722520641. The reversal of 32722520640 is 4602522723.

It is not an unprimeable number, because it can be changed into a prime (32722520641) 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, 1962579 + ... + 1979181.

It is an arithmetic number, because the mean of its divisors is an integer number (928132764).

Almost surely, 2^32722520640 is an apocalyptic number.

32722520640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32722520640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51975434784).

32722520640 is an abundant number, since it is smaller than the sum of its proper divisors (71228348928).

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

32722520640 is a wasteful number, since it uses less digits than its factorization.

32722520640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18676 (or 18666 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The spelling of 32722520640 in words is "thirty-two billion, seven hundred twenty-two million, five hundred twenty thousand, six hundred forty".