11706221063 has 16 divisors (see below), whose sum is σ = 12668534784. Its totient is φ = 10776769920.

The previous prime is 11706221047. The next prime is 11706221069. The reversal of 11706221063 is 36012260711.

It is a cyclic number.

It is not a de Polignac number, because 11706221063 - 2⁴ = 11706221047 is a prime.

It is a super-2 number, since 2×11706221063² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11706221069) 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, 115106 + ... + 191472.

It is an arithmetic number, because the mean of its divisors is an integer number (791783424).

Almost surely, 2^11706221063 is an apocalyptic number.

11706221063 is a deficient number, since it is larger than the sum of its proper divisors (962313721).

11706221063 is a wasteful number, since it uses less digits than its factorization.

11706221063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76582.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 11706221063 its reverse (36012260711), we get a palindrome (47718481774).

The spelling of 11706221063 in words is "eleven billion, seven hundred six million, two hundred twenty-one thousand, sixty-three".