43666676767980 has 768 divisors, whose sum is σ = 162349144473600. Its totient is φ = 9535978782720.

The previous prime is 43666676767979. The next prime is 43666676768017. The reversal of 43666676767980 is 8976767666634.

It is a self number, because there is not a number n which added to its sum of digits gives 43666676767980.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 4673727189 + ... + 4673736531.

It is an arithmetic number, because the mean of its divisors is an integer number (211392115200).

Almost surely, 2^{43666676767980} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43666676767980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81174572236800).

43666676767980 is an abundant number, since it is smaller than the sum of its proper divisors (118682467705620).

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

43666676767980 is a wasteful number, since it uses less digits than its factorization.

43666676767980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10031 (or 10023 counting only the distinct ones).

The product of its (nonzero) digits is 13826598912, while the sum is 81.

The spelling of 43666676767980 in words is "forty-three trillion, six hundred sixty-six billion, six hundred seventy-six million, seven hundred sixty-seven thousand, nine hundred eighty".