16269915272 has 36 divisors (see below), whose sum is σ = 33042748095. Its totient is φ = 7507027008.

The previous prime is 16269915271. The next prime is 16269915301. The reversal of 16269915272 is 27251996261.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 791071876 + 15478843396 = 28126^2 + 124414^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=90194.

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 16269915272.

It is not an unprimeable number, because it can be changed into a prime (16269915271) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4688354 + ... + 4691822.

Almost surely, 2^16269915272 is an apocalyptic number.

It is an amenable number.

16269915272 is an abundant number, since it is smaller than the sum of its proper divisors (16772832823).

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

16269915272 is an frugal number, since it uses more digits than its factorization.

16269915272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6970 (or 3484 counting only the distinct ones).

The product of its digits is 816480, while the sum is 50.

Multiplying 16269915272 by its sum of digits (50), we get a square (813495763600 = 901940²).

The spelling of 16269915272 in words is "sixteen billion, two hundred sixty-nine million, nine hundred fifteen thousand, two hundred seventy-two".