16014243421 has 16 divisors (see below), whose sum is σ = 17706947328. Its totient is φ = 14361984000.

The previous prime is 16014243383. The next prime is 16014243431. The reversal of 16014243421 is 12434241061.

It is a cyclic number.

It is not a de Polignac number, because 16014243421 - 2¹⁹ = 16013719133 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16014243421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16014243431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309996 + ... + 357946.

It is an arithmetic number, because the mean of its divisors is an integer number (1106684208).

Almost surely, 2^16014243421 is an apocalyptic number.

16014243421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16014243421 is a deficient number, since it is larger than the sum of its proper divisors (1692703907).

16014243421 is a wasteful number, since it uses less digits than its factorization.

16014243421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48372.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 16014243421 its reverse (12434241061), we get a palindrome (28448484482).

The spelling of 16014243421 in words is "sixteen billion, fourteen million, two hundred forty-three thousand, four hundred twenty-one".