385709566211 has 4 divisors (see below), whose sum is σ = 385814983800. Its totient is φ = 385604148624.

The previous prime is 385709566163. The next prime is 385709566213. The reversal of 385709566211 is 112665907583.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112665907583 = 23 ⋅4898517721.

It is a cyclic number.

It is not a de Polignac number, because 385709566211 - 2⁶ = 385709566147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (385709566213) 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, 52703306 + ... + 52710623.

It is an arithmetic number, because the mean of its divisors is an integer number (96453745950).

Almost surely, 2^385709566211 is an apocalyptic number.

385709566211 is a deficient number, since it is larger than the sum of its proper divisors (105417589).

385709566211 is a wasteful number, since it uses less digits than its factorization.

385709566211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105417588.

The product of its (nonzero) digits is 2721600, while the sum is 53.

The spelling of 385709566211 in words is "three hundred eighty-five billion, seven hundred nine million, five hundred sixty-six thousand, two hundred eleven".