20025344543120 has 240 divisors, whose sum is σ = 55136575283328. Its totient is φ = 6743163248640.

The previous prime is 20025344543059. The next prime is 20025344543147. The reversal of 20025344543120 is 2134544352002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

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 47 ways as a sum of consecutive naturals, for example, 49610429 + ... + 50012451.

Almost surely, 2^{20025344543120} is an apocalyptic number.

20025344543120 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 20025344543120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27568287641664).

20025344543120 is an abundant number, since it is smaller than the sum of its proper divisors (35111230740208).

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

20025344543120 is a wasteful number, since it uses less digits than its factorization.

20025344543120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402278 (or 402265 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 20025344543120 its reverse (2134544352002), we get a palindrome (22159888895122).

The spelling of 20025344543120 in words is "twenty trillion, twenty-five billion, three hundred forty-four million, five hundred forty-three thousand, one hundred twenty".