16653005 has 8 divisors (see below), whose sum is σ = 20088312. Its totient is φ = 13252608.

The previous prime is 16652969. The next prime is 16653017. The reversal of 16653005 is 50035661.

It can be written as a sum of positive squares in 4 ways, for example, as 218089 + 16434916 = 467^2 + 4054^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 16653005 - 2⁸ = 16652749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7664 + ... + 9593.

It is an arithmetic number, because the mean of its divisors is an integer number (2511039).

Almost surely, 2^16653005 is an apocalyptic number.

It is an amenable number.

16653005 is a deficient number, since it is larger than the sum of its proper divisors (3435307).

16653005 is a wasteful number, since it uses less digits than its factorization.

16653005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17455.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 16653005 is about 4080.8093559979. The cubic root of 16653005 is about 255.3666646257.

Adding to 16653005 its reverse (50035661), we get a palindrome (66688666).

The spelling of 16653005 in words is "sixteen million, six hundred fifty-three thousand, five".