4066446642240 has 56 divisors (see below), whose sum is σ = 12910968092160. Its totient is φ = 1084385771008.

The previous prime is 4066446642233. The next prime is 4066446642259. The reversal of 4066446642240 is 422466446604.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 4066446642240.

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 7 ways as a sum of consecutive naturals, for example, 2117940000 + ... + 2117941919.

Almost surely, 2^{4066446642240} is an apocalyptic number.

4066446642240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4066446642240 is an abundant number, since it is smaller than the sum of its proper divisors (8844521449920).

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

4066446642240 is a wasteful number, since it uses less digits than its factorization.

4066446642240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4235881939 (or 4235881929 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 48.

The spelling of 4066446642240 in words is "four trillion, sixty-six billion, four hundred forty-six million, six hundred forty-two thousand, two hundred forty".