43666680400007 has 8 divisors (see below), whose sum is σ = 51065353823616. Its totient is φ = 36558151032312.

The previous prime is 43666680399989. The next prime is 43666680400027. The reversal of 43666680400007 is 70000408666634.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43666680400007 - 2³⁰ = 43665606658183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43666680400027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72536013653 + ... + 72536014254.

It is an arithmetic number, because the mean of its divisors is an integer number (6383169227952).

Almost surely, 2^{43666680400007} is an apocalyptic number.

43666680400007 is a deficient number, since it is larger than the sum of its proper divisors (7398673423609).

43666680400007 is a wasteful number, since it uses less digits than its factorization.

43666680400007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145072027957.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 43666680400007 in words is "forty-three trillion, six hundred sixty-six billion, six hundred eighty million, four hundred thousand, seven".