16163144 has 8 divisors (see below), whose sum is σ = 30305910. Its totient is φ = 8081568.

The previous prime is 16163137. The next prime is 16163177. The reversal of 16163144 is 44136161.

It can be written as a sum of positive squares in only one way, i.e., 10640644 + 5522500 = 3262^2 + 2350^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×16163144² = 522494447929472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010189 + ... + 1010204.

Almost surely, 2^16163144 is an apocalyptic number.

It is an amenable number.

16163144 is a deficient number, since it is larger than the sum of its proper divisors (14142766).

16163144 is a wasteful number, since it uses less digits than its factorization.

16163144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2020399 (or 2020395 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 16163144 is about 4020.3412790458. The cubic root of 16163144 is about 252.8377677510.

The spelling of 16163144 in words is "sixteen million, one hundred sixty-three thousand, one hundred forty-four".