20016450256245 has 16 divisors (see below), whose sum is σ = 32477395347072. Its totient is φ = 10525081824320.

The previous prime is 20016450256213. The next prime is 20016450256249. The reversal of 20016450256245 is 54265205461002.

It is a happy number.

It is not a de Polignac number, because 20016450256245 - 2⁵ = 20016450256213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20016450256197 and 20016450256206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20016450256249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9397393422 + ... + 9397395551.

It is an arithmetic number, because the mean of its divisors is an integer number (2029837209192).

Almost surely, 2^{20016450256245} is an apocalyptic number.

It is an amenable number.

20016450256245 is a deficient number, since it is larger than the sum of its proper divisors (12460945090827).

20016450256245 is a wasteful number, since it uses less digits than its factorization.

20016450256245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18794789052.

The product of its (nonzero) digits is 576000, while the sum is 42.

The spelling of 20016450256245 in words is "twenty trillion, sixteen billion, four hundred fifty million, two hundred fifty-six thousand, two hundred forty-five".