16278868203 has 16 divisors (see below), whose sum is σ = 24605038080. Its totient is φ = 9490513824.

The previous prime is 16278868187. The next prime is 16278868271. The reversal of 16278868203 is 30286887261.

It is a happy number.

It is not a de Polignac number, because 16278868203 - 2⁴ = 16278868187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16278868303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10983651 + ... + 10985132.

It is an arithmetic number, because the mean of its divisors is an integer number (1537814880).

Almost surely, 2^16278868203 is an apocalyptic number.

16278868203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16278868203 is a deficient number, since it is larger than the sum of its proper divisors (8326169877).

16278868203 is a wasteful number, since it uses less digits than its factorization.

16278868203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21968818.

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 16278868203 in words is "sixteen billion, two hundred seventy-eight million, eight hundred sixty-eight thousand, two hundred three".