16652371022225 has 12 divisors (see below), whose sum is σ = 20649436906140. Its totient is φ = 13321576276800.

The previous prime is 16652371022219. The next prime is 16652371022323. The reversal of 16652371022225 is 52222017325661.

It can be written as a sum of positive squares in 6 ways, for example, as 825030689344 + 15827340332881 = 908312^2 + 3978359^2 .

It is not a de Polignac number, because 16652371022225 - 2⁸ = 16652371021969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6950966 + ... + 9034415.

It is an arithmetic number, because the mean of its divisors is an integer number (1720786408845).

Almost surely, 2^{16652371022225} is an apocalyptic number.

It is an amenable number.

16652371022225 is a deficient number, since it is larger than the sum of its proper divisors (3997065883915).

16652371022225 is a wasteful number, since it uses less digits than its factorization.

16652371022225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16027060 (or 16027055 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

Adding to 16652371022225 its reverse (52222017325661), we get a palindrome (68874388347886).

The spelling of 16652371022225 in words is "sixteen trillion, six hundred fifty-two billion, three hundred seventy-one million, twenty-two thousand, two hundred twenty-five".