16278204103 has 20 divisors (see below), whose sum is σ = 19214832400. Its totient is φ = 13784640996.

The previous prime is 16278204091. The next prime is 16278204109. The reversal of 16278204103 is 30140287261.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 16278204103 - 2⁵ = 16278204071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16278204109) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 196122900 + ... + 196122982.

It is an arithmetic number, because the mean of its divisors is an integer number (960741620).

Almost surely, 2^16278204103 is an apocalyptic number.

16278204103 is a deficient number, since it is larger than the sum of its proper divisors (2936628297).

16278204103 is an frugal number, since it uses more digits than its factorization.

16278204103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

Multiplying 16278204103 by its product of nonzero digits (16128), we get a square (262534875773184 = 16202928²).

The spelling of 16278204103 in words is "sixteen billion, two hundred seventy-eight million, two hundred four thousand, one hundred three".