11156661379 has 2 divisors, whose sum is σ = 11156661380. Its totient is φ = 11156661378.

The previous prime is 11156661317. The next prime is 11156661407. The reversal of 11156661379 is 97316665111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11156661379 - 2⁷ = 11156661251 is a prime.

It is not a weakly prime, because it can be changed into another prime (11156661479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5578330689 + 5578330690.

It is an arithmetic number, because the mean of its divisors is an integer number (5578330690).

Almost surely, 2^11156661379 is an apocalyptic number.

11156661379 is a deficient number, since it is larger than the sum of its proper divisors (1).

11156661379 is an equidigital number, since it uses as much as digits as its factorization.

11156661379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 46.

The spelling of 11156661379 in words is "eleven billion, one hundred fifty-six million, six hundred sixty-one thousand, three hundred seventy-nine".