16022251720225 has 24 divisors (see below), whose sum is σ = 19914763857912. Its totient is φ = 12787379404800.

The previous prime is 16022251720217. The next prime is 16022251720231. The reversal of 16022251720225 is 52202715222061.

16022251720225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 2461563309969 + 13560688410256 = 1568937^2 + 3682484^2 .

It is not a de Polignac number, because 16022251720225 - 2³ = 16022251720217 is a prime.

It is a Duffinian 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, 57174049 + ... + 57453601.

It is an arithmetic number, because the mean of its divisors is an integer number (829781827413).

Almost surely, 2^{16022251720225} is an apocalyptic number.

It is an amenable number.

16022251720225 is a deficient number, since it is larger than the sum of its proper divisors (3892512137687).

16022251720225 is a wasteful number, since it uses less digits than its factorization.

16022251720225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284997 (or 284992 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

Adding to 16022251720225 its reverse (52202715222061), we get a palindrome (68224966942286).

The spelling of 16022251720225 in words is "sixteen trillion, twenty-two billion, two hundred fifty-one million, seven hundred twenty thousand, two hundred twenty-five".