20145414111525 has 24 divisors (see below), whose sum is σ = 37007871850560. Its totient is φ = 10744220859120.

The previous prime is 20145414111497. The next prime is 20145414111569. The reversal of 20145414111525 is 52511141454102.

20145414111525 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 5 + 4 + 14 + 111 + 525 = 666.

It is not a de Polignac number, because 20145414111525 - 2¹⁰ = 20145414110501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20145414111525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14922528297 + ... + 14922529646.

It is an arithmetic number, because the mean of its divisors is an integer number (1541994660440).

Almost surely, 2^{20145414111525} is an apocalyptic number.

20145414111525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20145414111525 is a deficient number, since it is larger than the sum of its proper divisors (16862457739035).

20145414111525 is a wasteful number, since it uses less digits than its factorization.

20145414111525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29845057962 (or 29845057951 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

Adding to 20145414111525 its reverse (52511141454102), we get a palindrome (72656555565627).

The spelling of 20145414111525 in words is "twenty trillion, one hundred forty-five billion, four hundred fourteen million, one hundred eleven thousand, five hundred twenty-five".