11011666051111 has 16 divisors (see below), whose sum is σ = 12137821113600. Its totient is φ = 9906495750720.

The previous prime is 11011666051063. The next prime is 11011666051159. The reversal of 11011666051111 is 11115066611011.

It is an interprime number because it is at equal distance from previous prime (11011666051063) and next prime (11011666051159).

It is a cyclic number.

It is not a de Polignac number, because 11011666051111 - 2⁹ = 11011666050599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011666051411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1767561 + ... + 5014738.

It is an arithmetic number, because the mean of its divisors is an integer number (758613819600).

Almost surely, 2^{11011666051111} is an apocalyptic number.

11011666051111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11011666051111 is a deficient number, since it is larger than the sum of its proper divisors (1126155062489).

11011666051111 is a wasteful number, since it uses less digits than its factorization.

11011666051111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783846.

The product of its (nonzero) digits is 1080, while the sum is 31.

The spelling of 11011666051111 in words is "eleven trillion, eleven billion, six hundred sixty-six million, fifty-one thousand, one hundred eleven".