202134066680 has 128 divisors (see below), whose sum is σ = 559951418880. Its totient is φ = 63949754880.

The previous prime is 202134066677. The next prime is 202134066697. The reversal of 202134066680 is 86660431202.

It is a congruent number.

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, 12699287 + ... + 12715193.

It is an arithmetic number, because the mean of its divisors is an integer number (4374620460).

Almost surely, 2^202134066680 is an apocalyptic number.

202134066680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202134066680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279975709440).

202134066680 is an abundant number, since it is smaller than the sum of its proper divisors (357817352200).

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

202134066680 is a wasteful number, since it uses less digits than its factorization.

202134066680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19429 (or 19425 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 202134066680 its reverse (86660431202), we get a palindrome (288794497882).

The spelling of 202134066680 in words is "two hundred two billion, one hundred thirty-four million, sixty-six thousand, six hundred eighty".