2066215930 has 8 divisors (see below), whose sum is σ = 3719188692. Its totient is φ = 826486368.

The previous prime is 2066215843. The next prime is 2066215939. The reversal of 2066215930 is 395126602.

It can be written as a sum of positive squares in 2 ways, for example, as 2013406641 + 52809289 = 44871^2 + 7267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2066215939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103310787 + ... + 103310806.

Almost surely, 2^2066215930 is an apocalyptic number.

2066215930 is a deficient number, since it is larger than the sum of its proper divisors (1652972762).

2066215930 is a wasteful number, since it uses less digits than its factorization.

2066215930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206621600.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 2066215930 is about 45455.6479439024. The cubic root of 2066215930 is about 1273.6748359140.

The spelling of 2066215930 in words is "two billion, sixty-six million, two hundred fifteen thousand, nine hundred thirty".