2066218156 has 36 divisors (see below), whose sum is σ = 3982193712. Its totient is φ = 936166176.

The previous prime is 2066218117. The next prime is 2066218157. The reversal of 2066218156 is 6518126602.

It is not an unprimeable number, because it can be changed into a prime (2066218157) 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, 2106 + ... + 64318.

It is an arithmetic number, because the mean of its divisors is an integer number (110616492).

Almost surely, 2^2066218156 is an apocalyptic number.

It is an amenable number.

2066218156 is a deficient number, since it is larger than the sum of its proper divisors (1915975556).

2066218156 is a wasteful number, since it uses less digits than its factorization.

2066218156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62278 (or 62257 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2066218156 is about 45455.6724293019. The cubic root of 2066218156 is about 1273.6752933040.

The spelling of 2066218156 in words is "two billion, sixty-six million, two hundred eighteen thousand, one hundred fifty-six".