11071066671071 has 4 divisors (see below), whose sum is σ = 12077527277544. Its totient is φ = 10064606064600.

The previous prime is 11071066671043. The next prime is 11071066671101. The reversal of 11071066671071 is 17017666017011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11071066671071 is a prime.

It is a super-2 number, since 2×11071066671071² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11071066671671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503230303220 + ... + 503230303241.

It is an arithmetic number, because the mean of its divisors is an integer number (3019381819386).

Almost surely, 2^{11071066671071} is an apocalyptic number.

11071066671071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11071066671071 is a deficient number, since it is larger than the sum of its proper divisors (1006460606473).

11071066671071 is a wasteful number, since it uses less digits than its factorization.

11071066671071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006460606472.

The product of its (nonzero) digits is 74088, while the sum is 44.

The spelling of 11071066671071 in words is "eleven trillion, seventy-one billion, sixty-six million, six hundred seventy-one thousand, seventy-one".