11106666681 has 8 divisors (see below), whose sum is σ = 16155151584. Its totient is φ = 6731313120.

The previous prime is 11106666677. The next prime is 11106666689. The reversal of 11106666681 is 18666660111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11106666681 - 2² = 11106666677 is a prime.

It is a super-2 number, since 2×11106666681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11106666689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168282796 + ... + 168282861.

It is an arithmetic number, because the mean of its divisors is an integer number (2019393948).

Almost surely, 2^11106666681 is an apocalyptic number.

11106666681 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11106666681 is a deficient number, since it is larger than the sum of its proper divisors (5048484903).

11106666681 is a wasteful number, since it uses less digits than its factorization.

11106666681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336565671.

The product of its (nonzero) digits is 62208, while the sum is 42.

The spelling of 11106666681 in words is "eleven billion, one hundred six million, six hundred sixty-six thousand, six hundred eighty-one".