66344412026 has 16 divisors (see below), whose sum is σ = 100892606400. Its totient is φ = 32713658208.

The previous prime is 66344411999. The next prime is 66344412047. The reversal of 66344412026 is 62021444366.

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, 1359965 + ... + 1407903.

It is an arithmetic number, because the mean of its divisors is an integer number (6305787900).

Almost surely, 2^66344412026 is an apocalyptic number.

66344412026 is a deficient number, since it is larger than the sum of its proper divisors (34548194374).

66344412026 is a wasteful number, since it uses less digits than its factorization.

66344412026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57493.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 66344412026 in words is "sixty-six billion, three hundred forty-four million, four hundred twelve thousand, twenty-six".