16685056 has 24 divisors (see below), whose sum is σ = 33366060. Its totient is φ = 8341504.

The previous prime is 16685033. The next prime is 16685057. The reversal of 16685056 is 65058661.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16685057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2026 + ... + 6121.

Almost surely, 2^16685056 is an apocalyptic number.

16685056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16685056 is a deficient number, since it is larger than the sum of its proper divisors (16681004).

16685056 is an frugal number, since it uses more digits than its factorization.

16685056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8169 (or 8149 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 16685056 is about 4084.7345078964. The cubic root of 16685056 is about 255.5303890641.

It can be divided in two parts, 1668 and 5056, that added together give a square (6724 = 82²).

The spelling of 16685056 in words is "sixteen million, six hundred eighty-five thousand, fifty-six".