20335151433440 has 96 divisors (see below), whose sum is σ = 48153421209600. Its totient is φ = 8115181632000.

The previous prime is 20335151433391. The next prime is 20335151433449. The reversal of 20335151433440 is 4433415153302.

It is a junction number, because it is equal to n+sod(n) for n = 20335151433394 and 20335151433403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20335151433449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127174661 + ... + 127334459.

It is an arithmetic number, because the mean of its divisors is an integer number (501598137600).

Almost surely, 2^{20335151433440} is an apocalyptic number.

20335151433440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20335151433440 is an abundant number, since it is smaller than the sum of its proper divisors (27818269776160).

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

20335151433440 is a wasteful number, since it uses less digits than its factorization.

20335151433440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161656 (or 161648 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 20335151433440 its reverse (4433415153302), we get a palindrome (24768566586742).

The spelling of 20335151433440 in words is "twenty trillion, three hundred thirty-five billion, one hundred fifty-one million, four hundred thirty-three thousand, four hundred forty".