11156728716 has 36 divisors (see below), whose sum is σ = 32230550352. Its totient is φ = 3187636704.

The previous prime is 11156728697. The next prime is 11156728717. The reversal of 11156728716 is 61782765111.

11156728716 is a `hidden beast` number, since 1 + 1 + 1 + 567 + 2 + 87 + 1 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (11156728717) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22136115 + ... + 22136618.

Almost surely, 2^11156728716 is an apocalyptic number.

It is an amenable number.

11156728716 is an abundant number, since it is smaller than the sum of its proper divisors (21073821636).

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

11156728716 is a wasteful number, since it uses less digits than its factorization.

11156728716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44272750 (or 44272745 counting only the distinct ones).

The product of its digits is 141120, while the sum is 45.

The spelling of 11156728716 in words is "eleven billion, one hundred fifty-six million, seven hundred twenty-eight thousand, seven hundred sixteen".