20662031110125 has 16 divisors (see below), whose sum is σ = 34381619767872. Its totient is φ = 11019749925200.

The previous prime is 20662031110103. The next prime is 20662031110141. The reversal of 20662031110125 is 52101113026602.

It is not a de Polignac number, because 20662031110125 - 2²¹ = 20662029012973 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20662031110092 and 20662031110101.

It is a congruent number.

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, 27549374439 + ... + 27549375188.

It is an arithmetic number, because the mean of its divisors is an integer number (2148851235492).

Almost surely, 2^{20662031110125} is an apocalyptic number.

20662031110125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20662031110125 is a deficient number, since it is larger than the sum of its proper divisors (13719588657747).

20662031110125 is an equidigital number, since it uses as much as digits as its factorization.

20662031110125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55098749645 (or 55098749635 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 20662031110125 its reverse (52101113026602), we get a palindrome (72763144136727).

The spelling of 20662031110125 in words is "twenty trillion, six hundred sixty-two billion, thirty-one million, one hundred ten thousand, one hundred twenty-five".