16223609436 has 12 divisors (see below), whose sum is σ = 37855088712. Its totient is φ = 5407869808.

The previous prime is 16223609419. The next prime is 16223609443. The reversal of 16223609436 is 63490632261.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 675983715 + ... + 675983738.

It is an arithmetic number, because the mean of its divisors is an integer number (3154590726).

Almost surely, 2^16223609436 is an apocalyptic number.

It is an amenable number.

16223609436 is an abundant number, since it is smaller than the sum of its proper divisors (21631479276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16223609436 is a wasteful number, since it uses less digits than its factorization.

16223609436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351967460 (or 1351967458 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 42.

The spelling of 16223609436 in words is "sixteen billion, two hundred twenty-three million, six hundred nine thousand, four hundred thirty-six".