16286191720 has 16 divisors (see below), whose sum is σ = 36643931460. Its totient is φ = 6514476672.

The previous prime is 16286191681. The next prime is 16286191729. The reversal of 16286191720 is 2719168261.

16286191720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15250768036 + 1035423684 = 123494^2 + 32178^2 .

It is not an unprimeable number, because it can be changed into a prime (16286191729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203577357 + ... + 203577436.

Almost surely, 2^16286191720 is an apocalyptic number.

16286191720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16286191720 is an abundant number, since it is smaller than the sum of its proper divisors (20357739740).

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

16286191720 is a wasteful number, since it uses less digits than its factorization.

16286191720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407154804 (or 407154800 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 16286191720 in words is "sixteen billion, two hundred eighty-six million, one hundred ninety-one thousand, seven hundred twenty".