20383550020 has 24 divisors (see below), whose sum is σ = 43321186944. Its totient is φ = 8055185376.

The previous prime is 20383550017. The next prime is 20383550029. The reversal of 20383550020 is 2005538302.

It is a super-2 number, since 2×20383550020² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20383550029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6137964 + ... + 6141283.

It is an arithmetic number, because the mean of its divisors is an integer number (1805049456).

Almost surely, 2^20383550020 is an apocalyptic number.

20383550020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20383550020 is an abundant number, since it is smaller than the sum of its proper divisors (22937636924).

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

20383550020 is a wasteful number, since it uses less digits than its factorization.

20383550020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12279339 (or 12279337 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The spelling of 20383550020 in words is "twenty billion, three hundred eighty-three million, five hundred fifty thousand, twenty".