16726225216 has 14 divisors (see below), whose sum is σ = 33191103290. Its totient is φ = 8363112576.

The previous prime is 16726225199. The next prime is 16726225261. The reversal of 16726225216 is 61252262761.

It can be written as a sum of positive squares in only one way, i.e., 11950862400 + 4775362816 = 109320^2 + 69104^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130673571 + ... + 130673698.

Almost surely, 2^16726225216 is an apocalyptic number.

16726225216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16726225216 is a deficient number, since it is larger than the sum of its proper divisors (16464878074).

16726225216 is an equidigital number, since it uses as much as digits as its factorization.

16726225216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261347281 (or 261347271 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

Adding to 16726225216 its reverse (61252262761), we get a palindrome (77978487977).

The spelling of 16726225216 in words is "sixteen billion, seven hundred twenty-six million, two hundred twenty-five thousand, two hundred sixteen".