32644020000 has 240 divisors, whose sum is σ = 107671908960. Its totient is φ = 8656896000.

The previous prime is 32644019983. The next prime is 32644020001. The reversal of 32644020000 is 2044623.

It is a tau number, because it is divible by the number of its divisors (240).

It is not an unprimeable number, because it can be changed into a prime (32644020001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11578591 + ... + 11581409.

It is an arithmetic number, because the mean of its divisors is an integer number (448632954).

Almost surely, 2^32644020000 is an apocalyptic number.

32644020000 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 32644020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53835954480).

32644020000 is an abundant number, since it is smaller than the sum of its proper divisors (75027888960).

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

32644020000 is a wasteful number, since it uses less digits than its factorization.

32644020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3045 (or 3022 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 32644020000 its reverse (2044623), we get a palindrome (32646064623).

The spelling of 32644020000 in words is "thirty-two billion, six hundred forty-four million, twenty thousand".