16650506 has 8 divisors (see below), whose sum is σ = 24999744. Its totient is φ = 8317260.

The previous prime is 16650461. The next prime is 16650509. The reversal of 16650506 is 60505661.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16650509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920 + ... + 5843.

It is an arithmetic number, because the mean of its divisors is an integer number (3124968).

Almost surely, 2^16650506 is an apocalyptic number.

16650506 is a deficient number, since it is larger than the sum of its proper divisors (8349238).

16650506 is a wasteful number, since it uses less digits than its factorization.

16650506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 16650506 is about 4080.5031552494. The cubic root of 16650506 is about 255.3538902902.

The spelling of 16650506 in words is "sixteen million, six hundred fifty thousand, five hundred six".