2166041622 has 16 divisors (see below), whose sum is σ = 4376745072. Its totient is φ = 714570240.

The previous prime is 2166041617. The next prime is 2166041681. The reversal of 2166041622 is 2261406612.

It is a self number, because there is not a number n which added to its sum of digits gives 2166041622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860279 + ... + 1861442.

It is an arithmetic number, because the mean of its divisors is an integer number (273546567).

Almost surely, 2^2166041622 is an apocalyptic number.

2166041622 is an abundant number, since it is smaller than the sum of its proper divisors (2210703450).

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

2166041622 is a wasteful number, since it uses less digits than its factorization.

2166041622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721823.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2166041622 is about 46540.7522715308. The cubic root of 2166041622 is about 1293.8649031976.

The spelling of 2166041622 in words is "two billion, one hundred sixty-six million, forty-one thousand, six hundred twenty-two".