20533445421250 has 160 divisors (see below), whose sum is σ = 40646741129280. Its totient is φ = 7755571296000.

The previous prime is 20533445421241. The next prime is 20533445421481. The reversal of 20533445421250 is 5212454433502.

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 79 ways as a sum of consecutive naturals, for example, 15710363097 + ... + 15710364403.

It is an arithmetic number, because the mean of its divisors is an integer number (254042132058).

Almost surely, 2^{20533445421250} is an apocalyptic number.

20533445421250 is a deficient number, since it is larger than the sum of its proper divisors (20113295708030).

20533445421250 is a wasteful number, since it uses less digits than its factorization.

20533445421250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3014 (or 2999 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 20533445421250 its reverse (5212454433502), we get a palindrome (25745899854752).

The spelling of 20533445421250 in words is "twenty trillion, five hundred thirty-three billion, four hundred forty-five million, four hundred twenty-one thousand, two hundred fifty".