16243493366772 has 144 divisors (see below), whose sum is σ = 49659387294720. Its totient is φ = 4577422679424.

The previous prime is 16243493366743. The next prime is 16243493366773. The reversal of 16243493366772 is 27766339434261.

16243493366772 is a `hidden beast` number, since 1 + 6 + 2 + 43 + 493 + 36 + 6 + 7 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16243493366773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20637268 + ... + 21409899.

Almost surely, 2^{16243493366772} is an apocalyptic number.

16243493366772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16243493366772 is an abundant number, since it is smaller than the sum of its proper divisors (33415893927948).

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

16243493366772 is a wasteful number, since it uses less digits than its factorization.

16243493366772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42047267 (or 42047252 counting only the distinct ones).

The product of its digits is 164602368, while the sum is 63.

The spelling of 16243493366772 in words is "sixteen trillion, two hundred forty-three billion, four hundred ninety-three million, three hundred sixty-six thousand, seven hundred seventy-two".