20016120125 has 16 divisors (see below), whose sum is σ = 24991110144. Its totient is φ = 16005850000.

The previous prime is 20016120097. The next prime is 20016120149. The reversal of 20016120125 is 52102161002.

It is not a de Polignac number, because 20016120125 - 2²⁶ = 19949011261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20016120097 and 20016120106.

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, 259820 + ... + 327930.

It is an arithmetic number, because the mean of its divisors is an integer number (1561944384).

Almost surely, 2^20016120125 is an apocalyptic number.

20016120125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20016120125 is a deficient number, since it is larger than the sum of its proper divisors (4974990019).

20016120125 is an equidigital number, since it uses as much as digits as its factorization.

20016120125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70477 (or 70467 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 20016120125 its reverse (52102161002), we get a palindrome (72118281127).

The spelling of 20016120125 in words is "twenty billion, sixteen million, one hundred twenty thousand, one hundred twenty-five".