16650650505 has 8 divisors (see below), whose sum is σ = 26641040832. Its totient is φ = 8880346928.

The previous prime is 16650650491. The next prime is 16650650539. The reversal of 16650650505 is 50505605661.

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 16650650505 - 2⁹ = 16650649993 is a prime.

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, 555021669 + ... + 555021698.

It is an arithmetic number, because the mean of its divisors is an integer number (3330130104).

Almost surely, 2^16650650505 is an apocalyptic number.

16650650505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16650650505 is a deficient number, since it is larger than the sum of its proper divisors (9990390327).

16650650505 is a wasteful number, since it uses less digits than its factorization.

16650650505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110043375.

The product of its (nonzero) digits is 135000, while the sum is 39.

The spelling of 16650650505 in words is "sixteen billion, six hundred fifty million, six hundred fifty thousand, five hundred five".