11667722686 has 8 divisors (see below), whose sum is σ = 17509290624. Its totient is φ = 5831292480.

The previous prime is 11667722629. The next prime is 11667722699. The reversal of 11667722686 is 68622776611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×11667722686² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278750 + ... + 1287841.

It is an arithmetic number, because the mean of its divisors is an integer number (2188661328).

Almost surely, 2^11667722686 is an apocalyptic number.

11667722686 is a deficient number, since it is larger than the sum of its proper divisors (5841567938).

11667722686 is a wasteful number, since it uses less digits than its factorization.

11667722686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2568866.

The product of its digits is 2032128, while the sum is 52.

The spelling of 11667722686 in words is "eleven billion, six hundred sixty-seven million, seven hundred twenty-two thousand, six hundred eighty-six".