11156429377 has 4 divisors (see below), whose sum is σ = 11156717700. Its totient is φ = 11156141056.

The previous prime is 11156429321. The next prime is 11156429387. The reversal of 11156429377 is 77392465111.

It is a Cunningham number, because it is equal to 105624²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139617856 + 11016811521 = 11816^2 + 104961^2 .

It is a cyclic number.

It is not a de Polignac number, because 11156429377 - 2²⁷ = 11022211649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11156429387) 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, 75088 + ... + 167185.

It is an arithmetic number, because the mean of its divisors is an integer number (2789179425).

Almost surely, 2^11156429377 is an apocalyptic number.

It is an amenable number.

11156429377 is a deficient number, since it is larger than the sum of its proper divisors (288323).

11156429377 is an equidigital number, since it uses as much as digits as its factorization.

11156429377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288322.

The product of its digits is 317520, while the sum is 46.

The spelling of 11156429377 in words is "eleven billion, one hundred fifty-six million, four hundred twenty-nine thousand, three hundred seventy-seven".