16650056551665 has 8 divisors (see below), whose sum is σ = 26640090482688. Its totient is φ = 8880030160880.

The previous prime is 16650056551657. The next prime is 16650056551679. The reversal of 16650056551665 is 56615565005661.

16650056551665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 16650056551665 - 2³ = 16650056551657 is a prime.

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, 555001885041 + ... + 555001885070.

It is an arithmetic number, because the mean of its divisors is an integer number (3330011310336).

Almost surely, 2^{16650056551665} is an apocalyptic number.

16650056551665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16650056551665 is a deficient number, since it is larger than the sum of its proper divisors (9990033931023).

16650056551665 is a wasteful number, since it uses less digits than its factorization.

16650056551665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110003770119.

The product of its (nonzero) digits is 24300000, while the sum is 57.

The spelling of 16650056551665 in words is "sixteen trillion, six hundred fifty billion, fifty-six million, five hundred fifty-one thousand, six hundred sixty-five".