665110122 has 8 divisors (see below), whose sum is σ = 1330220256. Its totient is φ = 221703372.

The previous prime is 665110109. The next prime is 665110141. The reversal of 665110122 is 221011566.

665110122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

665110122 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 665110092 and 665110101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55425838 + ... + 55425849.

It is an arithmetic number, because the mean of its divisors is an integer number (166277532).

Almost surely, 2^665110122 is an apocalyptic number.

665110122 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

665110122 is a wasteful number, since it uses less digits than its factorization.

665110122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110851692.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 665110122 is about 25789.7290020659. The cubic root of 665110122 is about 872.9000514077.

Adding to 665110122 its reverse (221011566), we get a palindrome (886121688).

The spelling of 665110122 in words is "six hundred sixty-five million, one hundred ten thousand, one hundred twenty-two".