16223132404 has 6 divisors (see below), whose sum is σ = 28390481714. Its totient is φ = 8111566200.

The previous prime is 16223132389. The next prime is 16223132477. The reversal of 16223132404 is 40423132261.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8565132304 + 7658000100 = 92548^2 + 87510^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027891547 + ... + 2027891554.

Almost surely, 2^16223132404 is an apocalyptic number.

It is an amenable number.

16223132404 is a deficient number, since it is larger than the sum of its proper divisors (12167349310).

16223132404 is a wasteful number, since it uses less digits than its factorization.

16223132404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055783105 (or 4055783103 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 16223132404 its reverse (40423132261), we get a palindrome (56646264665).

The spelling of 16223132404 in words is "sixteen billion, two hundred twenty-three million, one hundred thirty-two thousand, four hundred four".