20662106 has 16 divisors (see below), whose sum is σ = 33073920. Its totient is φ = 9647040.

The previous prime is 20662091. The next prime is 20662121. The reversal of 20662106 is 60126602.

It is an interprime number because it is at equal distance from previous prime (20662091) and next prime (20662121).

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, 2135 + ... + 6773.

It is an arithmetic number, because the mean of its divisors is an integer number (2067120).

Almost surely, 2^20662106 is an apocalyptic number.

20662106 is a deficient number, since it is larger than the sum of its proper divisors (12411814).

20662106 is a wasteful number, since it uses less digits than its factorization.

20662106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20662106 is about 4545.5589315287. The cubic root of 20662106 is about 274.4046890800.

Adding to 20662106 its reverse (60126602), we get a palindrome (80788708).

The spelling of 20662106 in words is "twenty million, six hundred sixty-two thousand, one hundred six".