20433253054400 has 42 divisors (see below), whose sum is σ = 50278573300920. Its totient is φ = 8173301221120.

The previous prime is 20433253054343. The next prime is 20433253054471. The reversal of 20433253054400 is 445035233402.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6385389980 + ... + 6385393179.

Almost surely, 2^{20433253054400} is an apocalyptic number.

20433253054400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20433253054400 is an abundant number, since it is smaller than the sum of its proper divisors (29845320246520).

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

20433253054400 is a wasteful number, since it uses less digits than its factorization.

20433253054400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12770783181 (or 12770783166 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 35.

Adding to 20433253054400 its reverse (445035233402), we get a palindrome (20878288287802).

The spelling of 20433253054400 in words is "twenty trillion, four hundred thirty-three billion, two hundred fifty-three million, fifty-four thousand, four hundred".