200002131087564 has 96 divisors (see below), whose sum is σ = 520148576747520. Its totient is φ = 59388605837568.

The previous prime is 200002131087529. The next prime is 200002131087569. The reversal of 200002131087564 is 465780131200002.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (200002131087569) 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, 1149964 + ... + 20033139.

It is an arithmetic number, because the mean of its divisors is an integer number (5418214341120).

Almost surely, 2^{200002131087564} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200002131087564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260074288373760).

200002131087564 is an abundant number, since it is smaller than the sum of its proper divisors (320146445659956).

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

200002131087564 is a wasteful number, since it uses less digits than its factorization.

200002131087564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21185239 (or 21185237 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

Adding to 200002131087564 its reverse (465780131200002), we get a palindrome (665782262287566).

The spelling of 200002131087564 in words is "two hundred trillion, two billion, one hundred thirty-one million, eighty-seven thousand, five hundred sixty-four".