123622664 has 64 divisors (see below), whose sum is σ = 269049600. Its totient is φ = 52660800.

The previous prime is 123622651. The next prime is 123622729. The reversal of 123622664 is 466226321.

It is a self number, because there is not a number n which added to its sum of digits gives 123622664.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 178559 + ... + 179249.

It is an arithmetic number, because the mean of its divisors is an integer number (4203900).

Almost surely, 2^123622664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123622664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134524800).

123622664 is an abundant number, since it is smaller than the sum of its proper divisors (145426936).

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

123622664 is a wasteful number, since it uses less digits than its factorization.

123622664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834 (or 830 counting only the distinct ones).

The product of its digits is 20736, while the sum is 32.

The square root of 123622664 is about 11118.5729300122. The cubic root of 123622664 is about 498.1567653217.

Adding to 123622664 its reverse (466226321), we get a palindrome (589848985).

The spelling of 123622664 in words is "one hundred twenty-three million, six hundred twenty-two thousand, six hundred sixty-four".