22040402506 has 16 divisors (see below), whose sum is σ = 34594576128. Its totient is φ = 10518616800.

The previous prime is 22040402479. The next prime is 22040402521. The reversal of 22040402506 is 60520404022.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2430340 + ... + 2439391.

It is an arithmetic number, because the mean of its divisors is an integer number (2162161008).

Almost surely, 2^22040402506 is an apocalyptic number.

22040402506 is a deficient number, since it is larger than the sum of its proper divisors (12554173622).

22040402506 is a wasteful number, since it uses less digits than its factorization.

22040402506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4869837.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 22040402506 its reverse (60520404022), we get a palindrome (82560806528).

The spelling of 22040402506 in words is "twenty-two billion, forty million, four hundred two thousand, five hundred six".