16121376226 has 4 divisors (see below), whose sum is σ = 24182064342. Its totient is φ = 8060688112.

The previous prime is 16121376221. The next prime is 16121376239. The reversal of 16121376226 is 62267312161.

16121376226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16103356201 + 18020025 = 126899^2 + 4245^2 .

It is not an unprimeable number, because it can be changed into a prime (16121376221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4030344055 + ... + 4030344058.

Almost surely, 2^16121376226 is an apocalyptic number.

16121376226 is a deficient number, since it is larger than the sum of its proper divisors (8060688116).

16121376226 is an equidigital number, since it uses as much as digits as its factorization.

16121376226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060688115.

The product of its digits is 36288, while the sum is 37.

Adding to 16121376226 its reverse (62267312161), we get a palindrome (78388688387).

The spelling of 16121376226 in words is "sixteen billion, one hundred twenty-one million, three hundred seventy-six thousand, two hundred twenty-six".