66732244488 has 576 divisors, whose sum is σ = 233865216000. Its totient is φ = 16812956160.

The previous prime is 66732244477. The next prime is 66732244529. The reversal of 66732244488 is 88444223766.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 335337813 + ... + 335338011.

It is an arithmetic number, because the mean of its divisors is an integer number (406016000).

Almost surely, 2^66732244488 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 66732244488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116932608000).

66732244488 is an abundant number, since it is smaller than the sum of its proper divisors (167132971512).

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

66732244488 is a wasteful number, since it uses less digits than its factorization.

66732244488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 382 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 54.

The spelling of 66732244488 in words is "sixty-six billion, seven hundred thirty-two million, two hundred forty-four thousand, four hundred eighty-eight".