11061156541 has 2 divisors, whose sum is σ = 11061156542. Its totient is φ = 11061156540.

The previous prime is 11061156523. The next prime is 11061156571. The reversal of 11061156541 is 14565116011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9849768516 + 1211388025 = 99246^2 + 34805^2 .

It is an emirp because it is prime and its reverse (14565116011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11061156541 - 2²³ = 11052767933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11061156571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530578270 + 5530578271.

It is an arithmetic number, because the mean of its divisors is an integer number (5530578271).

Almost surely, 2^11061156541 is an apocalyptic number.

It is an amenable number.

11061156541 is a deficient number, since it is larger than the sum of its proper divisors (1).

11061156541 is an equidigital number, since it uses as much as digits as its factorization.

11061156541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 11061156541 in words is "eleven billion, sixty-one million, one hundred fifty-six thousand, five hundred forty-one".