20354000550400 has 240 divisors, whose sum is σ = 55035265874688. Its totient is φ = 7398465536000.

The previous prime is 20354000550383. The next prime is 20354000550419. The reversal of 20354000550400 is 405500045302.

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 23 ways as a sum of consecutive naturals, for example, 364784904 + ... + 364840696.

Almost surely, 2^{20354000550400} is an apocalyptic number.

20354000550400 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 20354000550400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27517632937344).

20354000550400 is an abundant number, since it is smaller than the sum of its proper divisors (34681265324288).

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

20354000550400 is a wasteful number, since it uses less digits than its factorization.

20354000550400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58423 (or 58402 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 20354000550400 its reverse (405500045302), we get a palindrome (20759500595702).

The spelling of 20354000550400 in words is "twenty trillion, three hundred fifty-four billion, five hundred fifty thousand, four hundred".