16622016 has 28 divisors (see below), whose sum is σ = 43979592. Its totient is φ = 5540608.

The previous prime is 16622009. The next prime is 16622033. The reversal of 16622016 is 61022661.

16622016 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 43095 + ... + 43478.

Almost surely, 2^16622016 is an apocalyptic number.

16622016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16622016 is an abundant number, since it is smaller than the sum of its proper divisors (27357576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16622016 is an equidigital number, since it uses as much as digits as its factorization.

16622016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86588 (or 86578 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 16622016 is about 4077.0106695960. The cubic root of 16622016 is about 255.2081652769.

Adding to 16622016 its reverse (61022661), we get a palindrome (77644677).

The spelling of 16622016 in words is "sixteen million, six hundred twenty-two thousand, sixteen".