22066461 has 12 divisors (see below), whose sum is σ = 31914688. Its totient is φ = 14692104.

The previous prime is 22066441. The next prime is 22066469. The reversal of 22066461 is 16466022.

It is a happy number.

It is not a de Polignac number, because 22066461 - 2⁶ = 22066397 is a prime.

It is a super-3 number, since 3×22066461³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22066469) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11946 + ... + 13668.

Almost surely, 2^22066461 is an apocalyptic number.

It is an amenable number.

22066461 is a deficient number, since it is larger than the sum of its proper divisors (9848227).

22066461 is a wasteful number, since it uses less digits than its factorization.

22066461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152 (or 3149 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 22066461 is about 4697.4951836058. The cubic root of 22066461 is about 280.4858105246.

The spelling of 22066461 in words is "twenty-two million, sixty-six thousand, four hundred sixty-one".