20601116 has 6 divisors (see below), whose sum is σ = 36051960.
Its totient is φ = 10300556.
The previous prime is 20601079. The next prime is 20601157. The reversal of 20601116 is 61110602.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 20601094 and 20601103.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2575136 + ... + 2575143.
It is an arithmetic number, because the mean of its divisors is an integer number (6008660).
Almost surely, 220601116 is an apocalyptic number.
It is an amenable number.
20601116 is a deficient number, since it is larger than the sum of its proper divisors (15450844).
20601116 is a wasteful number, since it uses less digits than its factorization.
20601116 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 5150283 (or 5150281 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 17.
The square root of 20601116 is about 4538.8452275882.
The cubic root of 20601116 is about 274.1344288593.
Adding to 20601116 its reverse (61110602), we get a palindrome (81711718).
The spelling of 20601116 in words is "twenty million, six hundred one thousand, one hundred sixteen".