16114563421 has 4 divisors (see below), whose sum is σ = 17579523744. Its totient is φ = 14649603100.

The previous prime is 16114563407. The next prime is 16114563463. The reversal of 16114563421 is 12436541161.

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 not a de Polignac number, because 16114563421 - 2⁵ = 16114563389 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 (16114569421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 732480145 + ... + 732480166.

It is an arithmetic number, because the mean of its divisors is an integer number (4394880936).

Almost surely, 2^16114563421 is an apocalyptic number.

16114563421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16114563421 is a deficient number, since it is larger than the sum of its proper divisors (1464960323).

16114563421 is a wasteful number, since it uses less digits than its factorization.

16114563421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464960322.

The product of its digits is 17280, while the sum is 34.

The spelling of 16114563421 in words is "sixteen billion, one hundred fourteen million, five hundred sixty-three thousand, four hundred twenty-one".