3666535145443 has 4 divisors (see below), whose sum is σ = 3825949717008. Its totient is φ = 3507120573880.

The previous prime is 3666535145419. The next prime is 3666535145551. The reversal of 3666535145443 is 3445415356663.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3666535145443 - 2⁹ = 3666535144931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3666535145743) 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, 79707285748 + ... + 79707285793.

It is an arithmetic number, because the mean of its divisors is an integer number (956487429252).

Almost surely, 2^{3666535145443} is an apocalyptic number.

3666535145443 is a deficient number, since it is larger than the sum of its proper divisors (159414571565).

3666535145443 is a wasteful number, since it uses less digits than its factorization.

3666535145443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159414571564.

The product of its digits is 46656000, while the sum is 55.

The spelling of 3666535145443 in words is "three trillion, six hundred sixty-six billion, five hundred thirty-five million, one hundred forty-five thousand, four hundred forty-three".