32645893152 has 144 divisors (see below), whose sum is σ = 92320627392. Its totient is φ = 10096988160.

The previous prime is 32645893151. The next prime is 32645893183. The reversal of 32645893152 is 25139854623.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (32645893151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1961538 + ... + 1978110.

It is an arithmetic number, because the mean of its divisors is an integer number (641115468).

Almost surely, 2^32645893152 is an apocalyptic number.

32645893152 is a gapful number since it is divisible by the number (32) 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 32645893152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46160313696).

32645893152 is an abundant number, since it is smaller than the sum of its proper divisors (59674734240).

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

32645893152 is a wasteful number, since it uses less digits than its factorization.

32645893152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16691 (or 16666 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 48.

The spelling of 32645893152 in words is "thirty-two billion, six hundred forty-five million, eight hundred ninety-three thousand, one hundred fifty-two".