165455164673 has 16 divisors (see below), whose sum is σ = 167435718912. Its totient is φ = 163490400000.

The previous prime is 165455164669. The next prime is 165455164723. The reversal of 165455164673 is 376461554561.

It is a cyclic number.

It is not a de Polignac number, because 165455164673 - 2² = 165455164669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165455164613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16388015 + ... + 16398107.

It is an arithmetic number, because the mean of its divisors is an integer number (10464732432).

Almost surely, 2^165455164673 is an apocalyptic number.

It is an amenable number.

165455164673 is a deficient number, since it is larger than the sum of its proper divisors (1980554239).

165455164673 is a wasteful number, since it uses less digits than its factorization.

165455164673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10856.

The product of its digits is 9072000, while the sum is 53.

The spelling of 165455164673 in words is "one hundred sixty-five billion, four hundred fifty-five million, one hundred sixty-four thousand, six hundred seventy-three".