20125527141440 has 112 divisors (see below), whose sum is σ = 54808574631552. Its totient is φ = 6895344193536.

The previous prime is 20125527141403. The next prime is 20125527141509. The reversal of 20125527141440 is 4414172552102.

It is a tau number, because it is divible by the number of its divisors (112).

It is a junction number, because it is equal to n+sod(n) for n = 20125527141394 and 20125527141403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48404 + ... + 6344556.

It is an arithmetic number, because the mean of its divisors is an integer number (489362273496).

Almost surely, 2^{20125527141440} is an apocalyptic number.

20125527141440 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 20125527141440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27404287315776).

20125527141440 is an abundant number, since it is smaller than the sum of its proper divisors (34683047490112).

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

20125527141440 is a wasteful number, since it uses less digits than its factorization.

20125527141440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6297604 (or 6297594 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 38.

Adding to 20125527141440 its reverse (4414172552102), we get a palindrome (24539699693542).

The spelling of 20125527141440 in words is "twenty trillion, one hundred twenty-five billion, five hundred twenty-seven million, one hundred forty-one thousand, four hundred forty".