11142167177 has 4 divisors (see below), whose sum is σ = 11142406416. Its totient is φ = 11141927940.

The previous prime is 11142167167. The next prime is 11142167209. The reversal of 11142167177 is 77176124111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11142167177 - 2¹⁴ = 11142150793 is a prime.

It is a super-2 number, since 2×11142167177² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11142167177.

It is not an unprimeable number, because it can be changed into a prime (11142167147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24599 + ... + 151292.

It is an arithmetic number, because the mean of its divisors is an integer number (2785601604).

Almost surely, 2^11142167177 is an apocalyptic number.

It is an amenable number.

11142167177 is a deficient number, since it is larger than the sum of its proper divisors (239239).

11142167177 is an equidigital number, since it uses as much as digits as its factorization.

11142167177 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239238.

The product of its digits is 16464, while the sum is 38.

The spelling of 11142167177 in words is "eleven billion, one hundred forty-two million, one hundred sixty-seven thousand, one hundred seventy-seven".