2166110170071 has 16 divisors (see below), whose sum is σ = 2912115360000. Its totient is φ = 1432136490048.

The previous prime is 2166110170019. The next prime is 2166110170079. The reversal of 2166110170071 is 1700710116612.

It is a de Polignac number, because none of the positive numbers 2^k-2166110170071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166110170079) 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, 5726046 + ... + 6092603.

It is an arithmetic number, because the mean of its divisors is an integer number (182007210000).

Almost surely, 2^{2166110170071} is an apocalyptic number.

2166110170071 is a deficient number, since it is larger than the sum of its proper divisors (746005189929).

2166110170071 is a wasteful number, since it uses less digits than its factorization.

2166110170071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11819158.

The product of its (nonzero) digits is 3528, while the sum is 33.

Adding to 2166110170071 its reverse (1700710116612), we get a palindrome (3866820286683).

The spelling of 2166110170071 in words is "two trillion, one hundred sixty-six billion, one hundred ten million, one hundred seventy thousand, seventy-one".