122165663 has 4 divisors (see below), whose sum is σ = 122338680. Its totient is φ = 121992648.

The previous prime is 122165633. The next prime is 122165669. The reversal of 122165663 is 366561221.

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 122165663 - 2¹⁶ = 122100127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122165669) 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, 85445 + ... + 86862.

It is an arithmetic number, because the mean of its divisors is an integer number (30584670).

Almost surely, 2^122165663 is an apocalyptic number.

122165663 is a deficient number, since it is larger than the sum of its proper divisors (173017).

122165663 is an equidigital number, since it uses as much as digits as its factorization.

122165663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173016.

The product of its digits is 12960, while the sum is 32.

The square root of 122165663 is about 11052.8576847800. The cubic root of 122165663 is about 496.1919552182.

The spelling of 122165663 in words is "one hundred twenty-two million, one hundred sixty-five thousand, six hundred sixty-three".