43246066561421 has 8 divisors (see below), whose sum is σ = 43410420866400. Its totient is φ = 43082003408400.

The previous prime is 43246066561393. The next prime is 43246066561427. The reversal of 43246066561421 is 12416566064234.

It is a happy number.

43246066561421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43246066561421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43246066561421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43246066561427) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 72490355 + ... + 73084496.

It is an arithmetic number, because the mean of its divisors is an integer number (5426302608300).

Almost surely, 2^{43246066561421} is an apocalyptic number.

It is an amenable number.

43246066561421 is a deficient number, since it is larger than the sum of its proper divisors (164354304979).

43246066561421 is a wasteful number, since it uses less digits than its factorization.

43246066561421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145575979.

The product of its (nonzero) digits is 4976640, while the sum is 50.

The spelling of 43246066561421 in words is "forty-three trillion, two hundred forty-six billion, sixty-six million, five hundred sixty-one thousand, four hundred twenty-one".