20065696 has 72 divisors (see below), whose sum is σ = 46884096. Its totient is φ = 8426880.

The previous prime is 20065657. The next prime is 20065733. The reversal of 20065696 is 69656002.

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, 104961 + ... + 105151.

It is an arithmetic number, because the mean of its divisors is an integer number (651168).

Almost surely, 2^20065696 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20065696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23442048).

20065696 is an abundant number, since it is smaller than the sum of its proper divisors (26818400).

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

20065696 is a wasteful number, since it uses less digits than its factorization.

20065696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 20065696 is about 4479.4749692347. The cubic root of 20065696 is about 271.7386474591.

The spelling of 20065696 in words is "twenty million, sixty-five thousand, six hundred ninety-six".