11161887737 has 24 divisors (see below), whose sum is σ = 15068952000. Its totient is φ = 8028521280.

The previous prime is 11161887703. The next prime is 11161887739. The reversal of 11161887737 is 73778816111.

It is not a de Polignac number, because 11161887737 - 2¹⁰ = 11161886713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11161887739) 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 23 ways as a sum of consecutive naturals, for example, 415862 + ... + 441887.

It is an arithmetic number, because the mean of its divisors is an integer number (627873000).

Almost surely, 2^11161887737 is an apocalyptic number.

It is an amenable number.

11161887737 is a deficient number, since it is larger than the sum of its proper divisors (3907064263).

11161887737 is a wasteful number, since it uses less digits than its factorization.

11161887737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857793 (or 857780 counting only the distinct ones).

The product of its digits is 395136, while the sum is 50.

It can be divided in two parts, 11161 and 887737, that added together give a palindrome (898898).

The spelling of 11161887737 in words is "eleven billion, one hundred sixty-one million, eight hundred eighty-seven thousand, seven hundred thirty-seven".