66363224928 has 576 divisors, whose sum is σ = 246982804992. Its totient is φ = 15065948160.

The previous prime is 66363224927. The next prime is 66363224953. The reversal of 66363224928 is 82942236366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66363224927) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 34689700 + ... + 34691612.

It is an arithmetic number, because the mean of its divisors is an integer number (428789592).

Almost surely, 2^66363224928 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 66363224928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123491402496).

66363224928 is an abundant number, since it is smaller than the sum of its proper divisors (180619580064).

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

66363224928 is a wasteful number, since it uses less digits than its factorization.

66363224928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995 (or 1968 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 51.

The spelling of 66363224928 in words is "sixty-six billion, three hundred sixty-three million, two hundred twenty-four thousand, nine hundred twenty-eight".