20466061 has 24 divisors (see below), whose sum is σ = 26140352. Its totient is φ = 15681600.

The previous prime is 20466053. The next prime is 20466071. The reversal of 20466061 is 16066402.

It is a happy number.

It is not a de Polignac number, because 20466061 - 2³ = 20466053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20466001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61666 + ... + 61996.

Almost surely, 2^20466061 is an apocalyptic number.

It is an amenable number.

20466061 is a deficient number, since it is larger than the sum of its proper divisors (5674291).

20466061 is a wasteful number, since it uses less digits than its factorization.

20466061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 20466061 is about 4523.9430809859. The cubic root of 20466061 is about 273.5340661445.

The spelling of 20466061 in words is "twenty million, four hundred sixty-six thousand, sixty-one".