20063616 has 32 divisors (see below), whose sum is σ = 53295000. Its totient is φ = 6687744.

The previous prime is 20063611. The next prime is 20063623. The reversal of 20063616 is 61636002.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20063611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25741 + ... + 26508.

Almost surely, 2^20063616 is an apocalyptic number.

It is an amenable number.

20063616 is an abundant number, since it is smaller than the sum of its proper divisors (33231384).

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

20063616 is an equidigital number, since it uses as much as digits as its factorization.

20063616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52266 (or 52254 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 20063616 is about 4479.2427931515. The cubic root of 20063616 is about 271.7292577040.

Adding to 20063616 its reverse (61636002), we get a palindrome (81699618).

The spelling of 20063616 in words is "twenty million, sixty-three thousand, six hundred sixteen".