15211128216 has 64 divisors (see below), whose sum is σ = 40281706080. Its totient is φ = 4770109440.

The previous prime is 15211128211. The next prime is 15211128263. The reversal of 15211128216 is 61282111251.

15211128216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15211128211) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1183746 + ... + 1196526.

Almost surely, 2^15211128216 is an apocalyptic number.

It is an amenable number.

15211128216 is an abundant number, since it is smaller than the sum of its proper divisors (25070577864).

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

15211128216 is a wasteful number, since it uses less digits than its factorization.

15211128216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15724 (or 15720 counting only the distinct ones).

The product of its digits is 1920, while the sum is 30.

Adding to 15211128216 its reverse (61282111251), we get a palindrome (76493239467).

The spelling of 15211128216 in words is "fifteen billion, two hundred eleven million, one hundred twenty-eight thousand, two hundred sixteen".