20433253315220 has 48 divisors (see below), whose sum is σ = 42925946112000. Its totient is φ = 8170232547840.

The previous prime is 20433253315213. The next prime is 20433253315301. The reversal of 20433253315220 is 2251335233402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049410085 + ... + 1049429555.

It is an arithmetic number, because the mean of its divisors is an integer number (894290544000).

Almost surely, 2^{20433253315220} is an apocalyptic number.

20433253315220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20433253315220 is an abundant number, since it is smaller than the sum of its proper divisors (22492692796780).

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

20433253315220 is a wasteful number, since it uses less digits than its factorization.

20433253315220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36488 (or 36486 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 20433253315220 its reverse (2251335233402), we get a palindrome (22684588548622).

The spelling of 20433253315220 in words is "twenty trillion, four hundred thirty-three billion, two hundred fifty-three million, three hundred fifteen thousand, two hundred twenty".