16550506655 has 8 divisors (see below), whose sum is σ = 21028879152. Its totient is φ = 12461557888.

The previous prime is 16550506601. The next prime is 16550506663. The reversal of 16550506655 is 55660505561.

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 16550506655 - 2⁶ = 16550506591 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, 97355837 + ... + 97356006.

It is an arithmetic number, because the mean of its divisors is an integer number (2628609894).

Almost surely, 2^16550506655 is an apocalyptic number.

16550506655 is a deficient number, since it is larger than the sum of its proper divisors (4478372497).

16550506655 is a wasteful number, since it uses less digits than its factorization.

16550506655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194711865.

The product of its (nonzero) digits is 675000, while the sum is 44.

The spelling of 16550506655 in words is "sixteen billion, five hundred fifty million, five hundred six thousand, six hundred fifty-five".