2085642066 has 8 divisors (see below), whose sum is σ = 4171284144. Its totient is φ = 695214020.

The previous prime is 2085642043. The next prime is 2085642071. The reversal of 2085642066 is 6602465802.

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

2085642066 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173803500 + ... + 173803511.

It is an arithmetic number, because the mean of its divisors is an integer number (521410518).

Almost surely, 2^2085642066 is an apocalyptic number.

2085642066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2085642066 is a wasteful number, since it uses less digits than its factorization.

2085642066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347607016.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2085642066 is about 45668.8303550682. The cubic root of 2085642066 is about 1277.6540007846.

The spelling of 2085642066 in words is "two billion, eighty-five million, six hundred forty-two thousand, sixty-six".