66004404246 has 24 divisors (see below), whose sum is σ = 156010410504. Its totient is φ = 20001334560.

The previous prime is 66004404239. The next prime is 66004404259. The reversal of 66004404246 is 64240440066.

It is a happy number.

66004404246 is a `hidden beast` number, since 6 + 6 + 0 + 0 + 4 + 404 + 246 = 666.

66004404246 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 66004404246.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166677591 + ... + 166677986.

It is an arithmetic number, because the mean of its divisors is an integer number (6500433771).

Almost surely, 2^66004404246 is an apocalyptic number.

66004404246 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

66004404246 is an abundant number, since it is smaller than the sum of its proper divisors (90006006258).

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

66004404246 is a wasteful number, since it uses less digits than its factorization.

66004404246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333355596 (or 333355593 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

The spelling of 66004404246 in words is "sixty-six billion, four million, four hundred four thousand, two hundred forty-six".