11564442201 has 16 divisors (see below), whose sum is σ = 17177952960. Its totient is φ = 6871179840.

The previous prime is 11564442199. The next prime is 11564442209. The reversal of 11564442201 is 10224446511.

It is not a de Polignac number, because 11564442201 - 2¹ = 11564442199 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11564442209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5111355 + ... + 5113616.

It is an arithmetic number, because the mean of its divisors is an integer number (1073622060).

Almost surely, 2^11564442201 is an apocalyptic number.

It is an amenable number.

11564442201 is a deficient number, since it is larger than the sum of its proper divisors (5613510759).

11564442201 is a wasteful number, since it uses less digits than its factorization.

11564442201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10225016.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 11564442201 its reverse (10224446511), we get a palindrome (21788888712).

The spelling of 11564442201 in words is "eleven billion, five hundred sixty-four million, four hundred forty-two thousand, two hundred one".