32320055040 has 864 divisors, whose sum is σ = 131806898496. Its totient is φ = 6688604160.

The previous prime is 32320055039. The next prime is 32320055057. The reversal of 32320055040 is 4055002323.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 32320055040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 178563750 + ... + 178563930.

Almost surely, 2^32320055040 is an apocalyptic number.

32320055040 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 32320055040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65903449248).

32320055040 is an abundant number, since it is smaller than the sum of its proper divisors (99486843456).

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

32320055040 is a wasteful number, since it uses less digits than its factorization.

32320055040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

Adding to 32320055040 its reverse (4055002323), we get a palindrome (36375057363).

The spelling of 32320055040 in words is "thirty-two billion, three hundred twenty million, fifty-five thousand, forty".