64032444220 has 24 divisors (see below), whose sum is σ = 134483277600. Its totient is φ = 25610092992.

The previous prime is 64032444211. The next prime is 64032444221. The reversal of 64032444220 is 2244423046.

It is a super-2 number, since 2×64032444220² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64032444221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6441 + ... + 357919.

It is an arithmetic number, because the mean of its divisors is an integer number (5603469900).

Almost surely, 2^64032444220 is an apocalyptic number.

It is an amenable number.

64032444220 is an abundant number, since it is smaller than the sum of its proper divisors (70450833380).

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

64032444220 is a wasteful number, since it uses less digits than its factorization.

64032444220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360597 (or 360595 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 64032444220 its reverse (2244423046), we get a palindrome (66276867266).

The spelling of 64032444220 in words is "sixty-four billion, thirty-two million, four hundred forty-four thousand, two hundred twenty".