16144430186 has 4 divisors (see below), whose sum is σ = 24216645282. Its totient is φ = 8072215092.

The previous prime is 16144430179. The next prime is 16144430219. The reversal of 16144430186 is 68103444161.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9956247961 + 6188182225 = 99781^2 + 78665^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4036107545 + ... + 4036107548.

Almost surely, 2^16144430186 is an apocalyptic number.

16144430186 is a deficient number, since it is larger than the sum of its proper divisors (8072215096).

16144430186 is an equidigital number, since it uses as much as digits as its factorization.

16144430186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8072215095.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 16144430186 in words is "sixteen billion, one hundred forty-four million, four hundred thirty thousand, one hundred eighty-six".