20323020454400 has 60 divisors (see below), whose sum is σ = 50351870943462. Its totient is φ = 8129208176640.

The previous prime is 20323020454391. The next prime is 20323020454421. The reversal of 20323020454400 is 445402032302.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 18482157631744 + 1840862822656 = 4299088^2 + 1356784^2 .

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, 793855187 + ... + 793880786.

Almost surely, 2^{20323020454400} is an apocalyptic number.

20323020454400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20323020454400 is an abundant number, since it is smaller than the sum of its proper divisors (30028850489062).

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

20323020454400 is an equidigital number, since it uses as much as digits as its factorization.

20323020454400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587736001 (or 1587735980 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 20323020454400 its reverse (445402032302), we get a palindrome (20768422486702).

The spelling of 20323020454400 in words is "twenty trillion, three hundred twenty-three billion, twenty million, four hundred fifty-four thousand, four hundred".