20310145473600 has 504 divisors, whose sum is σ = 75345638284800. Its totient is φ = 5179182243840.

The previous prime is 20310145473587. The next prime is 20310145473641. The reversal of 20310145473600 is 637454101302.

20310145473600 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 0 + 1 + 4 + 5 + 47 + 3 + 600 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 71 ways as a sum of consecutive naturals, for example, 1953081201 + ... + 1953091599.

Almost surely, 2^{20310145473600} is an apocalyptic number.

20310145473600 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 20310145473600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37672819142400).

20310145473600 is an abundant number, since it is smaller than the sum of its proper divisors (55035492811200).

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

20310145473600 is a wasteful number, since it uses less digits than its factorization.

20310145473600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16347 (or 16329 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Adding to 20310145473600 its reverse (637454101302), we get a palindrome (20947599574902).

The spelling of 20310145473600 in words is "twenty trillion, three hundred ten billion, one hundred forty-five million, four hundred seventy-three thousand, six hundred".