11161887736 has 16 divisors (see below), whose sum is σ = 20984653800. Its totient is φ = 5565980064.

The previous prime is 11161887703. The next prime is 11161887739. The reversal of 11161887736 is 63778816111.

It is a self number, because there is not a number n which added to its sum of digits gives 11161887736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11161887739) 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, 1867306 + ... + 1873273.

Almost surely, 2^11161887736 is an apocalyptic number.

It is an amenable number.

11161887736 is a deficient number, since it is larger than the sum of its proper divisors (9822766064).

11161887736 is a wasteful number, since it uses less digits than its factorization.

11161887736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740958 (or 3740954 counting only the distinct ones).

The product of its digits is 338688, while the sum is 49.

The spelling of 11161887736 in words is "eleven billion, one hundred sixty-one million, eight hundred eighty-seven thousand, seven hundred thirty-six".