22551630436 has 12 divisors (see below), whose sum is σ = 39489831612. Its totient is φ = 11268821408.

The previous prime is 22551630421. The next prime is 22551630457. The reversal of 22551630436 is 63403615522.

It can be written as a sum of positive squares in 2 ways, for example, as 19416750336 + 3134880100 = 139344^2 + 55990^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22551630395 and 22551630404.

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 3 ways as a sum of consecutive naturals, for example, 1741195 + ... + 1754098.

It is an arithmetic number, because the mean of its divisors is an integer number (3290819301).

Almost surely, 2^22551630436 is an apocalyptic number.

It is an amenable number.

22551630436 is a deficient number, since it is larger than the sum of its proper divisors (16938201176).

22551630436 is a wasteful number, since it uses less digits than its factorization.

22551630436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496910 (or 3496908 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 22551630436 in words is "twenty-two billion, five hundred fifty-one million, six hundred thirty thousand, four hundred thirty-six".