66966482472 has 128 divisors (see below), whose sum is σ = 178216796160. Its totient is φ = 20936079360.

The previous prime is 66966482437. The next prime is 66966482533. The reversal of 66966482472 is 27428466966.

It is a super-3 number, since 3×66966482472³ (a number of 33 digits) contains 333 as substring.

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 31 ways as a sum of consecutive naturals, for example, 3592408 + ... + 3611000.

It is an arithmetic number, because the mean of its divisors is an integer number (1392318720).

Almost surely, 2^66966482472 is an apocalyptic number.

66966482472 is a gapful number since it is divisible by the number (62) 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 66966482472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89108398080).

66966482472 is an abundant number, since it is smaller than the sum of its proper divisors (111250313688).

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

66966482472 is a wasteful number, since it uses less digits than its factorization.

66966482472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18783 (or 18779 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 60.

The spelling of 66966482472 in words is "sixty-six billion, nine hundred sixty-six million, four hundred eighty-two thousand, four hundred seventy-two".