20195568 has 50 divisors (see below), whose sum is σ = 58455584. Its totient is φ = 6731424.

The previous prime is 20195557. The next prime is 20195573. The reversal of 20195568 is 86559102.

It is a happy number.

20195568 is a `hidden beast` number, since 2 + 0 + 1 + 95 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6496 + ... + 9087.

Almost surely, 2^20195568 is an apocalyptic number.

It is an amenable number.

20195568 is an abundant number, since it is smaller than the sum of its proper divisors (38260016).

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

20195568 is a wasteful number, since it uses less digits than its factorization.

20195568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15603 (or 15588 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 20195568 is about 4493.9479302724. The cubic root of 20195568 is about 272.3236487678.

The spelling of 20195568 in words is "twenty million, one hundred ninety-five thousand, five hundred sixty-eight".