120605165089 has 4 divisors (see below), whose sum is σ = 120609278640. Its totient is φ = 120601051540.

The previous prime is 120605165071. The next prime is 120605165129. The reversal of 120605165089 is 980561506021.

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 120605165089 - 2²⁵ = 120571610657 is a prime.

It is a super-2 number, since 2×120605165089² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120605165029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012479 + ... + 2071540.

It is an arithmetic number, because the mean of its divisors is an integer number (30152319660).

Almost surely, 2^120605165089 is an apocalyptic number.

It is an amenable number.

120605165089 is a deficient number, since it is larger than the sum of its proper divisors (4113551).

120605165089 is an equidigital number, since it uses as much as digits as its factorization.

120605165089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4113550.

The product of its (nonzero) digits is 129600, while the sum is 43.

The spelling of 120605165089 in words is "one hundred twenty billion, six hundred five million, one hundred sixty-five thousand, eighty-nine".