443403120233161 has 4 divisors (see below), whose sum is σ = 483712494799824. Its totient is φ = 403093745666500.

The previous prime is 443403120233023. The next prime is 443403120233173. The reversal of 443403120233161 is 161332021304344.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443403120233161 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 443403120233161.

It is not an unprimeable number, because it can be changed into a prime (443403120233191) 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, 20154687283315 + ... + 20154687283336.

It is an arithmetic number, because the mean of its divisors is an integer number (120928123699956).

Almost surely, 2^{443403120233161} is an apocalyptic number.

It is an amenable number.

443403120233161 is a deficient number, since it is larger than the sum of its proper divisors (40309374566663).

443403120233161 is a wasteful number, since it uses less digits than its factorization.

443403120233161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40309374566662.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 443403120233161 in words is "four hundred forty-three trillion, four hundred three billion, one hundred twenty million, two hundred thirty-three thousand, one hundred sixty-one".