16199689284 has 63 divisors (see below), whose sum is σ = 42522781357. Its totient is φ = 5397605424.

The previous prime is 16199689277. The next prime is 16199689349. The reversal of 16199689284 is 48298699161.

The square root of 16199689284 is 127278.

It is a perfect power (a square), and thus also a powerful number.

16199689284 is a `hidden beast` number, since 1 + 619 + 9 + 6 + 8 + 9 + 2 + 8 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2945232900 + 13254456384 = 54270^2 + 115128^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 6871834 + ... + 6874190.

Almost surely, 2^16199689284 is an apocalyptic number.

16199689284 is the 127278-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16199689284

16199689284 is an abundant number, since it is smaller than the sum of its proper divisors (26323092073).

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

16199689284 is an frugal number, since it uses more digits than its factorization.

16199689284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4736 (or 2362 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 63.

The spelling of 16199689284 in words is "sixteen billion, one hundred ninety-nine million, six hundred eighty-nine thousand, two hundred eighty-four".