20116495 has 16 divisors (see below), whose sum is σ = 27846720. Its totient is φ = 13665024.

The previous prime is 20116487. The next prime is 20116531. The reversal of 20116495 is 59461102.

It is a cyclic number.

It is not a de Polignac number, because 20116495 - 2³ = 20116487 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1179 + ... + 6451.

It is an arithmetic number, because the mean of its divisors is an integer number (1740420).

Almost surely, 2^20116495 is an apocalyptic number.

20116495 is a deficient number, since it is larger than the sum of its proper divisors (7730225).

20116495 is a wasteful number, since it uses less digits than its factorization.

20116495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5394.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 20116495 is about 4485.1415808199. The cubic root of 20116495 is about 271.9677684919.

Adding to 20116495 its reverse (59461102), we get a palindrome (79577597).

The spelling of 20116495 in words is "twenty million, one hundred sixteen thousand, four hundred ninety-five".