15530806272 has 44 divisors (see below), whose sum is σ = 41395269176. Its totient is φ = 5176934400.

The previous prime is 15530806271. The next prime is 15530806279. The reversal of 15530806272 is 27260803551.

It is a self number, because there is not a number n which added to its sum of digits gives 15530806272.

It is not an unprimeable number, because it can be changed into a prime (15530806271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524729 + ... + 2530872.

Almost surely, 2^15530806272 is an apocalyptic number.

15530806272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15530806272 is an abundant number, since it is smaller than the sum of its proper divisors (25864462904).

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

15530806272 is an equidigital number, since it uses as much as digits as its factorization.

15530806272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5055624 (or 5055606 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The spelling of 15530806272 in words is "fifteen billion, five hundred thirty million, eight hundred six thousand, two hundred seventy-two".