16387072144 has 15 divisors (see below), whose sum is σ = 31750944403. Its totient is φ = 8193280048.

The previous prime is 16387072129. The next prime is 16387072159. The reversal of 16387072144 is 44127078361.

The square root of 16387072144 is 128012.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (16387072129) and next prime (16387072159).

It is a super-2 number, since 2×16387072144² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16387072144.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 496047 + ... + 528049.

Almost surely, 2^16387072144 is an apocalyptic number.

16387072144 is the 128012-nd square number.

It is an amenable number.

16387072144 is a deficient number, since it is larger than the sum of its proper divisors (15363872259).

16387072144 is an frugal number, since it uses more digits than its factorization.

16387072144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64014 (or 32005 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 43.

The spelling of 16387072144 in words is "sixteen billion, three hundred eighty-seven million, seventy-two thousand, one hundred forty-four".