22391369956 has 6 divisors (see below), whose sum is σ = 39184897430. Its totient is φ = 11195684976.

The previous prime is 22391369941. The next prime is 22391369971. The reversal of 22391369956 is 65996319322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22391369941) and next prime (22391369971).

It can be written as a sum of positive squares in only one way, i.e., 11542064356 + 10849305600 = 107434^2 + 104160^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22391369897 and 22391369906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2798921241 + ... + 2798921248.

Almost surely, 2^22391369956 is an apocalyptic number.

It is an amenable number.

22391369956 is a deficient number, since it is larger than the sum of its proper divisors (16793527474).

22391369956 is a wasteful number, since it uses less digits than its factorization.

22391369956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5597842493 (or 5597842491 counting only the distinct ones).

The product of its digits is 4723920, while the sum is 55.

The spelling of 22391369956 in words is "twenty-two billion, three hundred ninety-one million, three hundred sixty-nine thousand, nine hundred fifty-six".