16625143613216 has 12 divisors (see below), whose sum is σ = 32730751488582. Its totient is φ = 8312571806592.

The previous prime is 16625143613173. The next prime is 16625143613269. The reversal of 16625143613216 is 61231634152661.

It can be written as a sum of positive squares in only one way, i.e., 11123585721616 + 5501557891600 = 3335204^2 + 2345540^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 259767868925 + ... + 259767868988.

Almost surely, 2^{16625143613216} is an apocalyptic number.

16625143613216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16625143613216 is a deficient number, since it is larger than the sum of its proper divisors (16105607875366).

16625143613216 is an equidigital number, since it uses as much as digits as its factorization.

16625143613216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519535737923 (or 519535737915 counting only the distinct ones).

The product of its digits is 933120, while the sum is 47.

Adding to 16625143613216 its reverse (61231634152661), we get a palindrome (77856777765877).

The spelling of 16625143613216 in words is "sixteen trillion, six hundred twenty-five billion, one hundred forty-three million, six hundred thirteen thousand, two hundred sixteen".