385584248666 has 8 divisors (see below), whose sum is σ = 578380086804. Its totient is φ = 192790886400.

The previous prime is 385584248603. The next prime is 385584248669. The reversal of 385584248666 is 666842485583.

It can be written as a sum of positive squares in 2 ways, for example, as 377370633025 + 8213615641 = 614305^2 + 90629^2 .

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 (385584248669) 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, 162215 + ... + 893018.

Almost surely, 2^385584248666 is an apocalyptic number.

385584248666 is a deficient number, since it is larger than the sum of its proper divisors (192795838138).

385584248666 is a wasteful number, since it uses less digits than its factorization.

385584248666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237936.

The product of its digits is 265420800, while the sum is 65.

The spelling of 385584248666 in words is "three hundred eighty-five billion, five hundred eighty-four million, two hundred forty-eight thousand, six hundred sixty-six".