20706160 has 20 divisors (see below), whose sum is σ = 48142008. Its totient is φ = 8282432.

The previous prime is 20706151. The next prime is 20706167. The reversal of 20706160 is 6160702.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20706167) 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, 129334 + ... + 129493.

Almost surely, 2^20706160 is an apocalyptic number.

20706160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20706160 is an abundant number, since it is smaller than the sum of its proper divisors (27435848).

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

20706160 is a wasteful number, since it uses less digits than its factorization.

20706160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258840 (or 258834 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20706160 is about 4550.4021800276. The cubic root of 20706160 is about 274.5995714875.

Adding to 20706160 its reverse (6160702), we get a palindrome (26866862).

The spelling of 20706160 in words is "twenty million, seven hundred six thousand, one hundred sixty".