16220650 has 24 divisors (see below), whose sum is σ = 30744684. Its totient is φ = 6364800.

The previous prime is 16220641. The next prime is 16220671. The reversal of 16220650 is 5602261.

It can be written as a sum of positive squares in 6 ways, for example, as 4255969 + 11964681 = 2063^2 + 3459^2 .

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411 + ... + 5710.

Almost surely, 2^16220650 is an apocalyptic number.

16220650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16220650 is a deficient number, since it is larger than the sum of its proper divisors (14524034).

16220650 is a wasteful number, since it uses less digits than its factorization.

16220650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186 (or 6181 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 16220650 is about 4027.4868094135. The cubic root of 16220650 is about 253.1372655744.

The spelling of 16220650 in words is "sixteen million, two hundred twenty thousand, six hundred fifty".