22166685710450 has 24 divisors (see below), whose sum is σ = 43655331624372. Its totient is φ = 8345105208320.

The previous prime is 22166685710423. The next prime is 22166685710461. The reversal of 22166685710450 is 5401758666122.

It can be written as a sum of positive squares in 6 ways, for example, as 6635307176281 + 15531378534169 = 2575909^2 + 3940987^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22166685710392 and 22166685710401.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13039226039 + ... + 13039227738.

Almost surely, 2^{22166685710450} is an apocalyptic number.

22166685710450 is a deficient number, since it is larger than the sum of its proper divisors (21488645913922).

22166685710450 is a wasteful number, since it uses less digits than its factorization.

22166685710450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26078453806 (or 26078453801 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 53.

The spelling of 22166685710450 in words is "twenty-two trillion, one hundred sixty-six billion, six hundred eighty-five million, seven hundred ten thousand, four hundred fifty".