20716162 has 4 divisors (see below), whose sum is σ = 31074246. Its totient is φ = 10358080.

The previous prime is 20716141. The next prime is 20716187. The reversal of 20716162 is 26161702.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 95481 = 4541^2 + 309^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5179039 + ... + 5179042.

Almost surely, 2^20716162 is an apocalyptic number.

20716162 is a deficient number, since it is larger than the sum of its proper divisors (10358084).

20716162 is a wasteful number, since it uses less digits than its factorization.

20716162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10358083.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 20716162 is about 4551.5010710753. The cubic root of 20716162 is about 274.6437789890.

Adding to 20716162 its reverse (26161702), we get a palindrome (46877864).

The spelling of 20716162 in words is "twenty million, seven hundred sixteen thousand, one hundred sixty-two".