20451250332000 has 576 divisors, whose sum is σ = 75302670643200. Its totient is φ = 5451277708800.

The previous prime is 20451250331971. The next prime is 20451250332013. The reversal of 20451250332000 is 23305215402.

It is a happy number.

20451250332000 is a `hidden beast` number, since 2 + 0 + 451 + 2 + 5 + 0 + 3 + 3 + 200 + 0 = 666.

It is a super-2 number, since 2×20451250332000² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4042545471 + ... + 4042550529.

It is an arithmetic number, because the mean of its divisors is an integer number (130733803200).

Almost surely, 2^{20451250332000} is an apocalyptic number.

20451250332000 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 20451250332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37651335321600).

20451250332000 is an abundant number, since it is smaller than the sum of its proper divisors (54851420311200).

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

20451250332000 is an equidigital number, since it uses as much as digits as its factorization.

20451250332000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258 (or 9228 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 20451250332000 its reverse (23305215402), we get a palindrome (20474555547402).

The spelling of 20451250332000 in words is "twenty trillion, four hundred fifty-one billion, two hundred fifty million, three hundred thirty-two thousand".