16205388103 has 4 divisors (see below), whose sum is σ = 16213448488. Its totient is φ = 16197327720.

The previous prime is 16205388061. The next prime is 16205388107. The reversal of 16205388103 is 30188350261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30188350261 = 32771 ⋅921191.

It is a cyclic number.

It is not a de Polignac number, because 16205388103 - 2²¹ = 16203290951 is a prime.

It is a super-2 number, since 2×16205388103² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16205388107) 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 3 ways as a sum of consecutive naturals, for example, 4027176 + ... + 4031197.

It is an arithmetic number, because the mean of its divisors is an integer number (4053362122).

Almost surely, 2^16205388103 is an apocalyptic number.

16205388103 is a deficient number, since it is larger than the sum of its proper divisors (8060385).

16205388103 is an equidigital number, since it uses as much as digits as its factorization.

16205388103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8060384.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 16205388103 in words is "sixteen billion, two hundred five million, three hundred eighty-eight thousand, one hundred three".