16005272992 has 96 divisors (see below), whose sum is σ = 32957623440. Its totient is φ = 7645102080.

The previous prime is 16005272963. The next prime is 16005273001. The reversal of 16005272992 is 29927250061.

It can be written as a sum of positive squares in 8 ways, for example, as 1219685776 + 14785587216 = 34924^2 + 121596^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13194178 + ... + 13195390.

Almost surely, 2^16005272992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16005272992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16478811720).

16005272992 is an abundant number, since it is smaller than the sum of its proper divisors (16952350448).

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

16005272992 is a wasteful number, since it uses less digits than its factorization.

16005272992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 16005272992 in words is "sixteen billion, five million, two hundred seventy-two thousand, nine hundred ninety-two".