11613644631611 has 16 divisors (see below), whose sum is σ = 12800409751296. Its totient is φ = 10448799900000.

The previous prime is 11613644631599. The next prime is 11613644631637.

11613644631611 is nontrivially palindromic in base 10.

It is a de Polignac number, because none of the positive numbers 2^k-11613644631611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11613644631011) 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 15 ways as a sum of consecutive naturals, for example, 305876 + ... + 4829166.

It is an arithmetic number, because the mean of its divisors is an integer number (800025609456).

Almost surely, 2^{11613644631611} is an apocalyptic number.

11613644631611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11613644631611 is a deficient number, since it is larger than the sum of its proper divisors (1186765119685).

11613644631611 is a wasteful number, since it uses less digits than its factorization.

11613644631611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4525714.

The product of its digits is 186624, while the sum is 44.

It can be divided in two parts, 1161364 and 4631611, that added together give a palindrome (5792975).

The spelling of 11613644631611 in words is "eleven trillion, six hundred thirteen billion, six hundred forty-four million, six hundred thirty-one thousand, six hundred eleven".