83535587220 has 24 divisors (see below), whose sum is σ = 233899644384. Its totient is φ = 22276156576.

The previous prime is 83535587189. The next prime is 83535587221. The reversal of 83535587220 is 2278553538.

It is a self number, because there is not a number n which added to its sum of digits gives 83535587220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83535587221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696129834 + ... + 696129953.

It is an arithmetic number, because the mean of its divisors is an integer number (9745818516).

Almost surely, 2^83535587220 is an apocalyptic number.

It is an amenable number.

83535587220 is an abundant number, since it is smaller than the sum of its proper divisors (150364057164).

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

83535587220 is a wasteful number, since it uses less digits than its factorization.

83535587220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392259799 (or 1392259797 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 83535587220 in words is "eighty-three billion, five hundred thirty-five million, five hundred eighty-seven thousand, two hundred twenty".