32215455064 has 64 divisors (see below), whose sum is σ = 65644992000. Its totient is φ = 14733396480.

The previous prime is 32215455043. The next prime is 32215455191. The reversal of 32215455064 is 46055451223.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5340402 + ... + 5346430.

It is an arithmetic number, because the mean of its divisors is an integer number (1025703000).

Almost surely, 2^32215455064 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 32215455064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32822496000).

32215455064 is an abundant number, since it is smaller than the sum of its proper divisors (33429536936).

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

32215455064 is a wasteful number, since it uses less digits than its factorization.

32215455064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6508 (or 6504 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 32215455064 in words is "thirty-two billion, two hundred fifteen million, four hundred fifty-five thousand, sixty-four".