20013355000 has 40 divisors (see below), whose sum is σ = 46891302480. Its totient is φ = 8005340000.

The previous prime is 20013354979. The next prime is 20013355003. The reversal of 20013355000 is 55331002.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013355003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1996336 + ... + 2006335.

It is an arithmetic number, because the mean of its divisors is an integer number (1172282562).

Almost surely, 2^20013355000 is an apocalyptic number.

20013355000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013355000 is an abundant number, since it is smaller than the sum of its proper divisors (26877947480).

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

20013355000 is an equidigital number, since it uses as much as digits as its factorization.

20013355000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4002697 (or 4002678 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

Adding to 20013355000 its reverse (55331002), we get a palindrome (20068686002).

The spelling of 20013355000 in words is "twenty billion, thirteen million, three hundred fifty-five thousand".