11642244686 has 16 divisors (see below), whose sum is σ = 17622627840. Its totient is φ = 5768148960.

The previous prime is 11642244683. The next prime is 11642244697. The reversal of 11642244686 is 68644224611.

It is a happy number.

It is a super-2 number, since 2×11642244686² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11642244683) 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, 180620 + ... + 236448.

It is an arithmetic number, because the mean of its divisors is an integer number (1101414240).

Almost surely, 2^11642244686 is an apocalyptic number.

11642244686 is a deficient number, since it is larger than the sum of its proper divisors (5980383154).

11642244686 is a wasteful number, since it uses less digits than its factorization.

11642244686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56779.

The product of its digits is 442368, while the sum is 44.

The spelling of 11642244686 in words is "eleven billion, six hundred forty-two million, two hundred forty-four thousand, six hundred eighty-six".