15680116 has 6 divisors (see below), whose sum is σ = 27440210. Its totient is φ = 7840056.

The previous prime is 15680087. The next prime is 15680117. The reversal of 15680116 is 61108651.

It can be written as a sum of positive squares in only one way, i.e., 14092516 + 1587600 = 3754^2 + 1260^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15680117) by changing a digit.

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 as a sum of consecutive naturals, namely, 1960011 + ... + 1960018.

Almost surely, 2^15680116 is an apocalyptic number.

It is an amenable number.

15680116 is a deficient number, since it is larger than the sum of its proper divisors (11760094).

15680116 is a wasteful number, since it uses less digits than its factorization.

15680116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3920033 (or 3920031 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 15680116 is about 3959.8126218295. The cubic root of 15680116 is about 250.2936070446.

Adding to 15680116 its reverse (61108651), we get a palindrome (76788767).

The spelling of 15680116 in words is "fifteen million, six hundred eighty thousand, one hundred sixteen".