64222638480000 has 3200 divisors, whose sum is σ = 320699863693440. Its totient is φ = 12317184000000.

The previous prime is 64222638479977. The next prime is 64222638480029. The reversal of 64222638480000 is 8483622246.

64222638480000 is a `hidden beast` number, since 6 + 4 + 2 + 2 + 2 + 638 + 4 + 8 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3200).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 399 ways as a sum of consecutive naturals, for example, 6486475050 + ... + 6486484950.

Almost surely, 2^{64222638480000} is an apocalyptic number.

64222638480000 is a gapful number since it is divisible by the number (60) 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 64222638480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160349931846720).

64222638480000 is an abundant number, since it is smaller than the sum of its proper divisors (256477225213440).

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

64222638480000 is a wasteful number, since it uses less digits than its factorization.

64222638480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9978 (or 9942 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The spelling of 64222638480000 in words is "sixty-four trillion, two hundred twenty-two billion, six hundred thirty-eight million, four hundred eighty thousand".