20611106 has 16 divisors (see below), whose sum is σ = 32848416. Its totient is φ = 9665856.

The previous prime is 20611099. The next prime is 20611111. The reversal of 20611106 is 60111602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 10925 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (2053026).

Almost surely, 2^20611106 is an apocalyptic number.

20611106 is a deficient number, since it is larger than the sum of its proper divisors (12237310).

20611106 is a wasteful number, since it uses less digits than its factorization.

20611106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 20611106 is about 4539.9455943877. The cubic root of 20611106 is about 274.1787332615.

Adding to 20611106 its reverse (60111602), we get a palindrome (80722708).

The spelling of 20611106 in words is "twenty million, six hundred eleven thousand, one hundred six".