4111661111 has 2 divisors, whose sum is σ = 4111661112. Its totient is φ = 4111661110.

The previous prime is 4111661101. The next prime is 4111661129. The reversal of 4111661111 is 1111661114.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4111661111 - 2¹⁴ = 4111644727 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4111661101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2055830555 + 2055830556.

It is an arithmetic number, because the mean of its divisors is an integer number (2055830556).

Almost surely, 2^4111661111 is an apocalyptic number.

4111661111 is a deficient number, since it is larger than the sum of its proper divisors (1).

4111661111 is an equidigital number, since it uses as much as digits as its factorization.

4111661111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 23.

The square root of 4111661111 is about 64122.2356987028. The cubic root of 4111661111 is about 1602.0366136895.

The spelling of 4111661111 in words is "four billion, one hundred eleven million, six hundred sixty-one thousand, one hundred eleven".