25140105721120 has 192 divisors, whose sum is σ = 66357472860000. Its totient is φ = 8936726593536.

The previous prime is 25140105721099. The next prime is 25140105721121. The reversal of 25140105721120 is 2112750104152.

It can be written as a sum of positive squares in 16 ways, for example, as 144865494544 + 24995240226576 = 380612^2 + 4999524^2 .

It is not an unprimeable number, because it can be changed into a prime (25140105721121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20454576 + ... + 21648784.

Almost surely, 2^{25140105721120} is an apocalyptic number.

25140105721120 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 25140105721120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33178736430000).

25140105721120 is an abundant number, since it is smaller than the sum of its proper divisors (41217367138880).

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

25140105721120 is a wasteful number, since it uses less digits than its factorization.

25140105721120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194615 (or 1194607 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 31.

Adding to 25140105721120 its reverse (2112750104152), we get a palindrome (27252855825272).

The spelling of 25140105721120 in words is "twenty-five trillion, one hundred forty billion, one hundred five million, seven hundred twenty-one thousand, one hundred twenty".