11204040642 has 16 divisors (see below), whose sum is σ = 22409175360. Its totient is φ = 3734497872.

The previous prime is 11204040613. The next prime is 11204040643. The reversal of 11204040642 is 24604040211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11204040643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156363 + ... + 216465.

It is an arithmetic number, because the mean of its divisors is an integer number (1400573460).

Almost surely, 2^11204040642 is an apocalyptic number.

11204040642 is an abundant number, since it is smaller than the sum of its proper divisors (11205134718).

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

11204040642 is a wasteful number, since it uses less digits than its factorization.

11204040642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91177.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11204040642 its reverse (24604040211), we get a palindrome (35808080853).

The spelling of 11204040642 in words is "eleven billion, two hundred four million, forty thousand, six hundred forty-two".