20350019000 has 64 divisors (see below), whose sum is σ = 48081608640. Its totient is φ = 8060937600.

The previous prime is 20350018999. The next prime is 20350019017. The reversal of 20350019000 is 91005302.

It is a super-2 number, since 2×20350019000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4214 + ... + 201786.

It is an arithmetic number, because the mean of its divisors is an integer number (751275135).

Almost surely, 2^20350019000 is an apocalyptic number.

20350019000 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 20350019000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24040804320).

20350019000 is an abundant number, since it is smaller than the sum of its proper divisors (27731589640).

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

20350019000 is a wasteful number, since it uses less digits than its factorization.

20350019000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197697 (or 197683 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The spelling of 20350019000 in words is "twenty billion, three hundred fifty million, nineteen thousand".