11662721367 has 12 divisors (see below), whose sum is σ = 17092473720. Its totient is φ = 7068315760.

The previous prime is 11662721281. The next prime is 11662721381. The reversal of 11662721367 is 76312726611.

It is a happy number.

11662721367 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11662721367 - 2¹⁰ = 11662720343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11662721387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16063992 + ... + 16064717.

It is an arithmetic number, because the mean of its divisors is an integer number (1424372810).

Almost surely, 2^11662721367 is an apocalyptic number.

11662721367 is a deficient number, since it is larger than the sum of its proper divisors (5429752353).

11662721367 is a wasteful number, since it uses less digits than its factorization.

11662721367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32128734 (or 32128723 counting only the distinct ones).

The product of its digits is 127008, while the sum is 42.

The spelling of 11662721367 in words is "eleven billion, six hundred sixty-two million, seven hundred twenty-one thousand, three hundred sixty-seven".