11156516072 has 48 divisors (see below), whose sum is σ = 22674523500. Its totient is φ = 5143896576.

The previous prime is 11156516071. The next prime is 11156516081. The reversal of 11156516072 is 27061565111.

It can be written as a sum of positive squares in 6 ways, for example, as 162154756 + 10994361316 = 12734^2 + 104854^2 .

It is not an unprimeable number, because it can be changed into a prime (11156516071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1522754 + ... + 1530062.

Almost surely, 2^11156516072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11156516072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11337261750).

11156516072 is an abundant number, since it is smaller than the sum of its proper divisors (11518007428).

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

11156516072 is a wasteful number, since it uses less digits than its factorization.

11156516072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470 (or 8453 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 11156516072 in words is "eleven billion, one hundred fifty-six million, five hundred sixteen thousand, seventy-two".