22066065606 has 64 divisors (see below), whose sum is σ = 51753542400. Its totient is φ = 6210400896.

The previous prime is 22066065599. The next prime is 22066065613. The reversal of 22066065606 is 60656066022.

It is an interprime number because it is at equal distance from previous prime (22066065599) and next prime (22066065613).

It is a super-2 number, since 2×22066065606² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 213736 + ... + 299691.

It is an arithmetic number, because the mean of its divisors is an integer number (808649100).

Almost surely, 2^22066065606 is an apocalyptic number.

22066065606 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22066065606 is an abundant number, since it is smaller than the sum of its proper divisors (29687476794).

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

22066065606 is a wasteful number, since it uses less digits than its factorization.

22066065606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513493.

The product of its (nonzero) digits is 155520, while the sum is 39.

The spelling of 22066065606 in words is "twenty-two billion, sixty-six million, sixty-five thousand, six hundred six".