11682161156 has 12 divisors (see below), whose sum is σ = 20444779740. Its totient is φ = 5840795520.

The previous prime is 11682161131. The next prime is 11682161203. The reversal of 11682161156 is 65116128611.

It can be written as a sum of positive squares in 2 ways, for example, as 8106121156 + 3576040000 = 90034^2 + 59800^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40376 + ... + 158096.

It is an arithmetic number, because the mean of its divisors is an integer number (1703731645).

Almost surely, 2^11682161156 is an apocalyptic number.

It is an amenable number.

11682161156 is a deficient number, since it is larger than the sum of its proper divisors (8762618584).

11682161156 is a wasteful number, since it uses less digits than its factorization.

11682161156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142534 (or 142532 counting only the distinct ones).

The product of its digits is 17280, while the sum is 38.

Adding to 11682161156 its reverse (65116128611), we get a palindrome (76798289767).

The spelling of 11682161156 in words is "eleven billion, six hundred eighty-two million, one hundred sixty-one thousand, one hundred fifty-six".