443260052166661 has 4 divisors (see below), whose sum is σ = 449503151493024. Its totient is φ = 437016952840300.

The previous prime is 443260052166593. The next prime is 443260052166677. The reversal of 443260052166661 is 166661250062344.

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 not a de Polignac number, because 443260052166661 - 2¹⁷ = 443260052035589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 443260052166599 and 443260052166608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (443260052166691) 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, 3121549663075 + ... + 3121549663216.

It is an arithmetic number, because the mean of its divisors is an integer number (112375787873256).

Almost surely, 2^{443260052166661} is an apocalyptic number.

It is an amenable number.

443260052166661 is a deficient number, since it is larger than the sum of its proper divisors (6243099326363).

443260052166661 is an equidigital number, since it uses as much as digits as its factorization.

443260052166661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6243099326362.

The product of its (nonzero) digits is 7464960, while the sum is 52.

The spelling of 443260052166661 in words is "four hundred forty-three trillion, two hundred sixty billion, fifty-two million, one hundred sixty-six thousand, six hundred sixty-one".