16653316505 has 8 divisors (see below), whose sum is σ = 22838834112. Its totient is φ = 11419417008.

The previous prime is 16653316487. The next prime is 16653316523. The reversal of 16653316505 is 50561335661.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16653316487) and next prime (16653316523).

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 16653316505 - 2⁸ = 16653316249 is a prime.

It is a Duffinian number.

It is a Curzon 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, 237904487 + ... + 237904556.

It is an arithmetic number, because the mean of its divisors is an integer number (2854854264).

Almost surely, 2^16653316505 is an apocalyptic number.

It is an amenable number.

16653316505 is a deficient number, since it is larger than the sum of its proper divisors (6185517607).

16653316505 is an equidigital number, since it uses as much as digits as its factorization.

16653316505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475809055.

The product of its (nonzero) digits is 243000, while the sum is 41.

The spelling of 16653316505 in words is "sixteen billion, six hundred fifty-three million, three hundred sixteen thousand, five hundred five".