16238415172 has 36 divisors (see below), whose sum is σ = 33267389484. Its totient is φ = 6914980800.

The previous prime is 16238415143. The next prime is 16238415191. The reversal of 16238415172 is 27151483261.

16238415172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12034967616 + 4203447556 = 109704^2 + 64834^2 .

It is a super-2 number, since 2×16238415172² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233079 + ... + 294622.

Almost surely, 2^16238415172 is an apocalyptic number.

It is an amenable number.

16238415172 is an abundant number, since it is smaller than the sum of its proper divisors (17028974312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16238415172 is a wasteful number, since it uses less digits than its factorization.

16238415172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527876 (or 527867 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The spelling of 16238415172 in words is "sixteen billion, two hundred thirty-eight million, four hundred fifteen thousand, one hundred seventy-two".