43343223607665 has 24 divisors (see below), whose sum is σ = 75130330098408. Its totient is φ = 23115747202560.

The previous prime is 43343223607631. The next prime is 43343223607687. The reversal of 43343223607665 is 56670632234334.

43343223607665 is a `hidden beast` number, since 4 + 3 + 3 + 4 + 3 + 2 + 23 + 607 + 6 + 6 + 5 = 666.

43343223607665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 5868404505441 + 37474819102224 = 2422479^2 + 6121668^2 .

It is not a de Polignac number, because 43343223607665 - 2¹⁷ = 43343223476593 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11657734 + ... + 14919423.

It is an arithmetic number, because the mean of its divisors is an integer number (3130430420767).

Almost surely, 2^{43343223607665} is an apocalyptic number.

43343223607665 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43343223607665 is a deficient number, since it is larger than the sum of its proper divisors (31787106490743).

43343223607665 is a wasteful number, since it uses less digits than its factorization.

43343223607665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26613409 (or 26613406 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 54.

The spelling of 43343223607665 in words is "forty-three trillion, three hundred forty-three billion, two hundred twenty-three million, six hundred seven thousand, six hundred sixty-five".