99385209564 has 48 divisors (see below), whose sum is σ = 245389616640. Its totient is φ = 31241721280.

The previous prime is 99385209563. The next prime is 99385209607. The reversal of 99385209564 is 46590258399.

It is a junction number, because it is equal to n+sod(n) for n = 99385209498 and 99385209507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99385209563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2516259 + ... + 2555450.

It is an arithmetic number, because the mean of its divisors is an integer number (5112283680).

Almost surely, 2^99385209564 is an apocalyptic number.

It is an amenable number.

99385209564 is an abundant number, since it is smaller than the sum of its proper divisors (146004407076).

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

99385209564 is a wasteful number, since it uses less digits than its factorization.

99385209564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071810 (or 5071808 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 60.

The spelling of 99385209564 in words is "ninety-nine billion, three hundred eighty-five million, two hundred nine thousand, five hundred sixty-four".