2166607071 has 12 divisors (see below), whose sum is σ = 3134202448. Its totient is φ = 1442254464.

The previous prime is 2166607067. The next prime is 2166607097. The reversal of 2166607071 is 1707066612.

2166607071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2166607071 - 2² = 2166607067 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 (2166607271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172795 + ... + 184908.

Almost surely, 2^2166607071 is an apocalyptic number.

2166607071 is a deficient number, since it is larger than the sum of its proper divisors (967595377).

2166607071 is a wasteful number, since it uses less digits than its factorization.

2166607071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358382 (or 358379 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 2166607071 is about 46546.8266480111. The cubic root of 2166607071 is about 1293.9774819763.

The spelling of 2166607071 in words is "two billion, one hundred sixty-six million, six hundred seven thousand, seventy-one".