64224254038220 has 12 divisors (see below), whose sum is σ = 134870933480304. Its totient is φ = 25689701615280.

The previous prime is 64224254038211. The next prime is 64224254038223. The reversal of 64224254038220 is 2283045242246.

It is not an unprimeable number, because it can be changed into a prime (64224254038223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1605606350936 + ... + 1605606350975.

It is an arithmetic number, because the mean of its divisors is an integer number (11239244456692).

Almost surely, 2^{64224254038220} is an apocalyptic number.

It is an amenable number.

64224254038220 is an abundant number, since it is smaller than the sum of its proper divisors (70646679442084).

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

64224254038220 is a wasteful number, since it uses less digits than its factorization.

64224254038220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211212701920 (or 3211212701918 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 44.

The spelling of 64224254038220 in words is "sixty-four trillion, two hundred twenty-four billion, two hundred fifty-four million, thirty-eight thousand, two hundred twenty".