16103420989 has 4 divisors (see below), whose sum is σ = 16343770624. Its totient is φ = 15863071356.

The previous prime is 16103420959. The next prime is 16103421011. The reversal of 16103420989 is 98902430161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16103420989 - 2⁹ = 16103420477 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 (16103420959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120174717 + ... + 120174850.

It is an arithmetic number, because the mean of its divisors is an integer number (4085942656).

Almost surely, 2^16103420989 is an apocalyptic number.

It is an amenable number.

16103420989 is a deficient number, since it is larger than the sum of its proper divisors (240349635).

16103420989 is an equidigital number, since it uses as much as digits as its factorization.

16103420989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240349634.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 16103420989 in words is "sixteen billion, one hundred three million, four hundred twenty thousand, nine hundred eighty-nine".