385557569922 has 64 divisors (see below), whose sum is σ = 913218001920. Its totient is φ = 106179318336.

The previous prime is 385557569801. The next prime is 385557569933. The reversal of 385557569922 is 229965755583.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 445333 + ... + 984599.

It is an arithmetic number, because the mean of its divisors is an integer number (14269031280).

Almost surely, 2^385557569922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 385557569922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456609000960).

385557569922 is an abundant number, since it is smaller than the sum of its proper divisors (527660431998).

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

385557569922 is a wasteful number, since it uses less digits than its factorization.

385557569922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539895.

The product of its digits is 204120000, while the sum is 66.

The spelling of 385557569922 in words is "three hundred eighty-five billion, five hundred fifty-seven million, five hundred sixty-nine thousand, nine hundred twenty-two".