16539650 has 12 divisors (see below), whose sum is σ = 30763842. Its totient is φ = 6615840.

The previous prime is 16539643. The next prime is 16539673. The reversal of 16539650 is 5693561.

It can be written as a sum of positive squares in 3 ways, for example, as 11336689 + 5202961 = 3367^2 + 2281^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16539650.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 165347 + ... + 165446.

Almost surely, 2^16539650 is an apocalyptic number.

16539650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16539650 is a deficient number, since it is larger than the sum of its proper divisors (14224192).

16539650 is a wasteful number, since it uses less digits than its factorization.

16539650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330805 (or 330800 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 35.

The square root of 16539650 is about 4066.8968514089. The cubic root of 16539650 is about 254.7859282449.

The spelling of 16539650 in words is "sixteen million, five hundred thirty-nine thousand, six hundred fifty".