16512116 has 12 divisors (see below), whose sum is σ = 29194788. Its totient is φ = 8170752.

The previous prime is 16512109. The next prime is 16512131. The reversal of 16512116 is 61121561.

It can be written as a sum of positive squares in 2 ways, for example, as 13104400 + 3407716 = 3620^2 + 1846^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16512091 and 16512100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20891 + ... + 21666.

It is an arithmetic number, because the mean of its divisors is an integer number (2432899).

Almost surely, 2^16512116 is an apocalyptic number.

It is an amenable number.

16512116 is a deficient number, since it is larger than the sum of its proper divisors (12682672).

16512116 is a wasteful number, since it uses less digits than its factorization.

16512116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42658 (or 42656 counting only the distinct ones).

The product of its digits is 360, while the sum is 23.

The square root of 16512116 is about 4063.5103051426. The cubic root of 16512116 is about 254.6444667228.

Adding to 16512116 its reverse (61121561), we get a palindrome (77633677).

The spelling of 16512116 in words is "sixteen million, five hundred twelve thousand, one hundred sixteen".