16424716021 has 16 divisors (see below), whose sum is σ = 19267877376. Its totient is φ = 13708791936.

The previous prime is 16424715961. The next prime is 16424716037. The reversal of 16424716021 is 12061742461.

It is not a de Polignac number, because 16424716021 - 2⁷ = 16424715893 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 (16424716621) 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, 61896 + ... + 191521.

It is an arithmetic number, because the mean of its divisors is an integer number (1204242336).

Almost surely, 2^16424716021 is an apocalyptic number.

It is an amenable number.

16424716021 is a deficient number, since it is larger than the sum of its proper divisors (2843161355).

16424716021 is a wasteful number, since it uses less digits than its factorization.

16424716021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253668.

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

The spelling of 16424716021 in words is "sixteen billion, four hundred twenty-four million, seven hundred sixteen thousand, twenty-one".