64226555712 has 336 divisors, whose sum is σ = 211156612992. Its totient is φ = 18474762240.

The previous prime is 64226555699. The next prime is 64226555773. The reversal of 64226555712 is 21755562246.

64226555712 is a `hidden beast` number, since 6 + 4 + 2 + 26 + 55 + 571 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 19963128 + ... + 19966344.

Almost surely, 2^64226555712 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 64226555712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105578306496).

64226555712 is an abundant number, since it is smaller than the sum of its proper divisors (146930057280).

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

64226555712 is a wasteful number, since it uses less digits than its factorization.

64226555712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 3393 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The spelling of 64226555712 in words is "sixty-four billion, two hundred twenty-six million, five hundred fifty-five thousand, seven hundred twelve".