43305641121668 has 12 divisors (see below), whose sum is σ = 75825247507212. Its totient is φ = 21641284691040.

The previous prime is 43305641121667. The next prime is 43305641121671. The reversal of 43305641121668 is 86612114650334.

It can be written as a sum of positive squares in 2 ways, for example, as 34919566481284 + 8386074640384 = 5909278^2 + 2895872^2 .

It is not an unprimeable number, because it can be changed into a prime (43305641121667) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2883959003 + ... + 2883974018.

It is an arithmetic number, because the mean of its divisors is an integer number (6318770625601).

Almost surely, 2^{43305641121668} is an apocalyptic number.

It is an amenable number.

43305641121668 is a deficient number, since it is larger than the sum of its proper divisors (32519606385544).

43305641121668 is a wasteful number, since it uses less digits than its factorization.

43305641121668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767934902 (or 5767934900 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 43305641121668 in words is "forty-three trillion, three hundred five billion, six hundred forty-one million, one hundred twenty-one thousand, six hundred sixty-eight".