165633009043 has 4 divisors (see below), whose sum is σ = 175376127240. Its totient is φ = 155889890848.

The previous prime is 165633009041. The next prime is 165633009053. The reversal of 165633009043 is 340900336561.

165633009043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 165633009043 - 2¹ = 165633009041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 165633008987 and 165633009005.

It is not an unprimeable number, because it can be changed into a prime (165633009041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4871559073 + ... + 4871559106.

It is an arithmetic number, because the mean of its divisors is an integer number (43844031810).

Almost surely, 2^165633009043 is an apocalyptic number.

165633009043 is a deficient number, since it is larger than the sum of its proper divisors (9743118197).

165633009043 is an equidigital number, since it uses as much as digits as its factorization.

165633009043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743118196.

The product of its (nonzero) digits is 174960, while the sum is 40.

The spelling of 165633009043 in words is "one hundred sixty-five billion, six hundred thirty-three million, nine thousand, forty-three".