123604222165 has 8 divisors (see below), whose sum is σ = 149991640920. Its totient is φ = 97772328192.

The previous prime is 123604222139. The next prime is 123604222193. The reversal of 123604222165 is 561222406321.

It can be written as a sum of positive squares in 4 ways, for example, as 144048004 + 123460174161 = 12002^2 + 351369^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123604222165 - 2¹³ = 123604213973 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123604222165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138880704 + ... + 138881593.

It is an arithmetic number, because the mean of its divisors is an integer number (18748955115).

Almost surely, 2^123604222165 is an apocalyptic number.

It is an amenable number.

123604222165 is a deficient number, since it is larger than the sum of its proper divisors (26387418755).

123604222165 is an equidigital number, since it uses as much as digits as its factorization.

123604222165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277762391.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 123604222165 its reverse (561222406321), we get a palindrome (684826628486).

The spelling of 123604222165 in words is "one hundred twenty-three billion, six hundred four million, two hundred twenty-two thousand, one hundred sixty-five".