20326220613200 has 60 divisors (see below), whose sum is σ = 48835635701340. Its totient is φ = 8130173460480.

The previous prime is 20326220613191. The next prime is 20326220613229. The reversal of 20326220613200 is 231602262302.

It can be written as a sum of positive squares in 6 ways, for example, as 294258511936 + 20031962101264 = 542456^2 + 4475708^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9500186 + ... + 11441414.

It is an arithmetic number, because the mean of its divisors is an integer number (813927261689).

Almost surely, 2^{20326220613200} is an apocalyptic number.

20326220613200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20326220613200 is an abundant number, since it is smaller than the sum of its proper divisors (28509415088140).

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

20326220613200 is a wasteful number, since it uses less digits than its factorization.

20326220613200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967424 (or 1967413 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 20326220613200 its reverse (231602262302), we get a palindrome (20557822875502).

The spelling of 20326220613200 in words is "twenty trillion, three hundred twenty-six billion, two hundred twenty million, six hundred thirteen thousand, two hundred".