20611064 has 16 divisors (see below), whose sum is σ = 39375720. Its totient is φ = 10110880.

The previous prime is 20611057. The next prime is 20611079. The reversal of 20611064 is 46011602.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23882 + ... + 24729.

Almost surely, 2^20611064 is an apocalyptic number.

It is an amenable number.

20611064 is a deficient number, since it is larger than the sum of its proper divisors (18764656).

20611064 is a wasteful number, since it uses less digits than its factorization.

20611064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48670 (or 48666 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 20611064 is about 4539.9409687792. The cubic root of 20611064 is about 274.1785470267.

Adding to 20611064 its reverse (46011602), we get a palindrome (66622666).

It can be divided in two parts, 2061 and 1064, that added together give a 5-th power (3125 = 5⁵).

The spelling of 20611064 in words is "twenty million, six hundred eleven thousand, sixty-four".