16220164 has 24 divisors (see below), whose sum is σ = 29816640. Its totient is φ = 7709856.

The previous prime is 16220143. The next prime is 16220177. The reversal of 16220164 is 46102261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6729 + ... + 8815.

It is an arithmetic number, because the mean of its divisors is an integer number (1242360).

Almost surely, 2^16220164 is an apocalyptic number.

It is an amenable number.

16220164 is a deficient number, since it is larger than the sum of its proper divisors (13596476).

16220164 is a wasteful number, since it uses less digits than its factorization.

16220164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2187 (or 2185 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16220164 is about 4027.4264735684. The cubic root of 16220164 is about 253.1347373991.

It can be divided in two parts, 16220 and 164, that added together give a 14-th power (16384 = 2¹⁴).

The spelling of 16220164 in words is "sixteen million, two hundred twenty thousand, one hundred sixty-four".