201836383820 has 48 divisors (see below), whose sum is σ = 449476903008. Its totient is φ = 75869015040.

The previous prime is 201836383807. The next prime is 201836383829. The reversal of 201836383820 is 28383638102.

It is not an unprimeable number, because it can be changed into a prime (201836383829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 232526 + ... + 676565.

It is an arithmetic number, because the mean of its divisors is an integer number (9364102146).

Almost surely, 2^201836383820 is an apocalyptic number.

201836383820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201836383820 is an abundant number, since it is smaller than the sum of its proper divisors (247640519188).

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

201836383820 is a wasteful number, since it uses less digits than its factorization.

201836383820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909770 (or 909768 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The spelling of 201836383820 in words is "two hundred one billion, eight hundred thirty-six million, three hundred eighty-three thousand, eight hundred twenty".