2071123866 has 48 divisors (see below), whose sum is σ = 5233176000. Its totient is φ = 591747912.

The previous prime is 2071123837. The next prime is 2071123867. The reversal of 2071123866 is 6683211702.

It is a self number, because there is not a number n which added to its sum of digits gives 2071123866.

It is not an unprimeable number, because it can be changed into a prime (2071123867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161556 + ... + 173903.

It is an arithmetic number, because the mean of its divisors is an integer number (109024500).

Almost surely, 2^2071123866 is an apocalyptic number.

2071123866 is an abundant number, since it is smaller than the sum of its proper divisors (3162052134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2071123866 is a wasteful number, since it uses less digits than its factorization.

2071123866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335488 (or 335471 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 2071123866 is about 45509.6019099267. The cubic root of 2071123866 is about 1274.6825027204.

The spelling of 2071123866 in words is "two billion, seventy-one million, one hundred twenty-three thousand, eight hundred sixty-six".