22047227604 has 18 divisors (see below), whose sum is σ = 55730492090. Its totient is φ = 7349075856.

The previous prime is 22047227591. The next prime is 22047227611. The reversal of 22047227604 is 40672274022.

22047227604 is a `hidden beast` number, since 2 + 2 + 0 + 47 + 2 + 2 + 7 + 604 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13992524100 + 8054703504 = 118290^2 + 89748^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 612422989 = 22047227604 / (2 + 2 + 0 + 4 + 7 + 2 + 2 + 7 + 6 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306211459 + ... + 306211530.

Almost surely, 2^22047227604 is an apocalyptic number.

It is an amenable number.

22047227604 is an abundant number, since it is smaller than the sum of its proper divisors (33683264486).

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

22047227604 is a wasteful number, since it uses less digits than its factorization.

22047227604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612422999 (or 612422994 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The spelling of 22047227604 in words is "twenty-two billion, forty-seven million, two hundred twenty-seven thousand, six hundred four".