11161128576 has 64 divisors (see below), whose sum is σ = 31927281120. Its totient is φ = 3434191872.

The previous prime is 11161128499. The next prime is 11161128593. The reversal of 11161128576 is 67582116111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112910 + ... + 1122893.

Almost surely, 2^11161128576 is an apocalyptic number.

11161128576 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11161128576 is an abundant number, since it is smaller than the sum of its proper divisors (20766152544).

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

11161128576 is a wasteful number, since it uses less digits than its factorization.

11161128576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2235833 (or 2235821 counting only the distinct ones).

The product of its digits is 20160, while the sum is 39.

The spelling of 11161128576 in words is "eleven billion, one hundred sixty-one million, one hundred twenty-eight thousand, five hundred seventy-six".