43956682665 has 64 divisors (see below), whose sum is σ = 80708120064. Its totient is φ = 20012156928.

The previous prime is 43956682643. The next prime is 43956682673. The reversal of 43956682665 is 56628665934.

It is a happy number.

It is not a de Polignac number, because 43956682665 - 2¹⁰ = 43956681641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43956682599 and 43956682608.

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 63 ways as a sum of consecutive naturals, for example, 50121207 + ... + 50122083.

It is an arithmetic number, because the mean of its divisors is an integer number (1261064376).

Almost surely, 2^43956682665 is an apocalyptic number.

It is an amenable number.

43956682665 is a deficient number, since it is larger than the sum of its proper divisors (36751437399).

43956682665 is a wasteful number, since it uses less digits than its factorization.

43956682665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306.

The product of its digits is 55987200, while the sum is 60.

The spelling of 43956682665 in words is "forty-three billion, nine hundred fifty-six million, six hundred eighty-two thousand, six hundred sixty-five".