22268068644 has 36 divisors (see below), whose sum is σ = 53812317104. Its totient is φ = 7166731488.

The previous prime is 22268068633. The next prime is 22268068657. The reversal of 22268068644 is 44686086222.

It is a happy number.

It is a super-2 number, since 2×22268068644² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22268068593 and 22268068602.

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 11 ways as a sum of consecutive naturals, for example, 1093162 + ... + 1113345.

Almost surely, 2^22268068644 is an apocalyptic number.

It is an amenable number.

22268068644 is an abundant number, since it is smaller than the sum of its proper divisors (31544248460).

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

22268068644 is a wasteful number, since it uses less digits than its factorization.

22268068644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206572 (or 2206541 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 48.

The spelling of 22268068644 in words is "twenty-two billion, two hundred sixty-eight million, sixty-eight thousand, six hundred forty-four".