200134206820 has 24 divisors (see below), whose sum is σ = 420604438464. Its totient is φ = 79992234336.

The previous prime is 200134206809. The next prime is 200134206823. The reversal of 200134206820 is 28602431002.

It is not an unprimeable number, because it can be changed into a prime (200134206823) 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, 3813814 + ... + 3865933.

It is an arithmetic number, because the mean of its divisors is an integer number (17525184936).

Almost surely, 2^200134206820 is an apocalyptic number.

200134206820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200134206820 is an abundant number, since it is smaller than the sum of its proper divisors (220470231644).

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

200134206820 is a wasteful number, since it uses less digits than its factorization.

200134206820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681059 (or 7681057 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 200134206820 its reverse (28602431002), we get a palindrome (228736637822).

The spelling of 200134206820 in words is "two hundred billion, one hundred thirty-four million, two hundred six thousand, eight hundred twenty".