20566132 has 24 divisors (see below), whose sum is σ = 38031840. Its totient is φ = 9704160.

The previous prime is 20566129. The next prime is 20566159. The reversal of 20566132 is 23166502.

It is a junction number, because it is equal to n+sod(n) for n = 20566097 and 20566106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34743 + ... + 35329.

It is an arithmetic number, because the mean of its divisors is an integer number (1584660).

Almost surely, 2^20566132 is an apocalyptic number.

It is an amenable number.

20566132 is a deficient number, since it is larger than the sum of its proper divisors (17465708).

20566132 is a wasteful number, since it uses less digits than its factorization.

20566132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20566132 is about 4534.9897464052. The cubic root of 20566132 is about 273.9791661926.

The spelling of 20566132 in words is "twenty million, five hundred sixty-six thousand, one hundred thirty-two".