66605181224388 has 24 divisors (see below), whose sum is σ = 155412405197280. Its totient is φ = 22201681978560.

The previous prime is 66605181224371. The next prime is 66605181224401. The reversal of 66605181224388 is 88342218150666.

66605181224388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 812083 + ... + 11570213.

It is an arithmetic number, because the mean of its divisors is an integer number (6475516883220).

Almost surely, 2^{66605181224388} is an apocalyptic number.

It is an amenable number.

66605181224388 is an abundant number, since it is smaller than the sum of its proper divisors (88807223972892).

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

66605181224388 is a wasteful number, since it uses less digits than its factorization.

66605181224388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11274067 (or 11274065 counting only the distinct ones).

The product of its (nonzero) digits is 26542080, while the sum is 60.

The spelling of 66605181224388 in words is "sixty-six trillion, six hundred five billion, one hundred eighty-one million, two hundred twenty-four thousand, three hundred eighty-eight".