16500281090 has 32 divisors (see below), whose sum is σ = 32532004080. Its totient is φ = 5997666304.

The previous prime is 16500281059. The next prime is 16500281099. The reversal of 16500281090 is 9018200561.

It can be written as a sum of positive squares in 8 ways, for example, as 14627209249 + 1873071841 = 120943^2 + 43279^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16500281099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1668527 + ... + 1678386.

Almost surely, 2^16500281090 is an apocalyptic number.

16500281090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16500281090 is a deficient number, since it is larger than the sum of its proper divisors (16031722990).

16500281090 is a wasteful number, since it uses less digits than its factorization.

16500281090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3346966.

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 16500281090 in words is "sixteen billion, five hundred million, two hundred eighty-one thousand, ninety".