16223279352 has 192 divisors, whose sum is σ = 50504140800. Its totient is φ = 4249117440.

The previous prime is 16223279341. The next prime is 16223279353. The reversal of 16223279352 is 25397232261.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16223279353) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1875774 + ... + 1884402.

It is an arithmetic number, because the mean of its divisors is an integer number (263042400).

Almost surely, 2^16223279352 is an apocalyptic number.

16223279352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16223279352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25252070400).

16223279352 is an abundant number, since it is smaller than the sum of its proper divisors (34280861448).

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

16223279352 is a wasteful number, since it uses less digits than its factorization.

16223279352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714 (or 8691 counting only the distinct ones).

The product of its digits is 272160, while the sum is 42.

The spelling of 16223279352 in words is "sixteen billion, two hundred twenty-three million, two hundred seventy-nine thousand, three hundred fifty-two".