165122465652211 has 4 divisors (see below), whose sum is σ = 165126340808424. Its totient is φ = 165118590496000.

The previous prime is 165122465652119. The next prime is 165122465652241. The reversal of 165122465652211 is 112256564221561.

It is a happy number.

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 165122465652211 - 2⁹ = 165122465651699 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (165122465652241) 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, 1937514190 + ... + 1937599411.

It is an arithmetic number, because the mean of its divisors is an integer number (41281585202106).

Almost surely, 2^{165122465652211} is an apocalyptic number.

165122465652211 is a deficient number, since it is larger than the sum of its proper divisors (3875156213).

165122465652211 is an equidigital number, since it uses as much as digits as its factorization.

165122465652211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3875156212.

The product of its digits is 1728000, while the sum is 49.

The spelling of 165122465652211 in words is "one hundred sixty-five trillion, one hundred twenty-two billion, four hundred sixty-five million, six hundred fifty-two thousand, two hundred eleven".