20035041520 has 80 divisors (see below), whose sum is σ = 50360526720. Its totient is φ = 7368671232.

The previous prime is 20035041461. The next prime is 20035041547. The reversal of 20035041520 is 2514053002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 20035041491 and 20035041500.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 229801 + ... + 304759.

It is an arithmetic number, because the mean of its divisors is an integer number (629506584).

Almost surely, 2^20035041520 is an apocalyptic number.

20035041520 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 20035041520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25180263360).

20035041520 is an abundant number, since it is smaller than the sum of its proper divisors (30325485200).

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

20035041520 is a wasteful number, since it uses less digits than its factorization.

20035041520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75242 (or 75236 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20035041520 its reverse (2514053002), we get a palindrome (22549094522).

The spelling of 20035041520 in words is "twenty billion, thirty-five million, forty-one thousand, five hundred twenty".