209330520330 has 64 divisors (see below), whose sum is σ = 518703833088. Its totient is φ = 54009910080.

The previous prime is 209330520317. The next prime is 209330520331. The reversal of 209330520330 is 33025033902.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (209330520331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5265387 + ... + 5304993.

It is an arithmetic number, because the mean of its divisors is an integer number (8104747392).

Almost surely, 2^209330520330 is an apocalyptic number.

209330520330 is an abundant number, since it is smaller than the sum of its proper divisors (309373312758).

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

209330520330 is a wasteful number, since it uses less digits than its factorization.

209330520330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45331.

The product of its (nonzero) digits is 14580, while the sum is 30.

The spelling of 209330520330 in words is "two hundred nine billion, three hundred thirty million, five hundred twenty thousand, three hundred thirty".