16650357166663 has 8 divisors (see below), whose sum is σ = 18179251518096. Its totient is φ = 15124000401600.

The previous prime is 16650357166621. The next prime is 16650357166691. The reversal of 16650357166663 is 36666175305661.

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 16650357166663 - 2²⁵ = 16650323612231 is a prime.

It is a super-3 number, since 3×16650357166663³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16650357163663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 634382868 + ... + 634409113.

It is an arithmetic number, because the mean of its divisors is an integer number (2272406439762).

Almost surely, 2^{16650357166663} is an apocalyptic number.

16650357166663 is a deficient number, since it is larger than the sum of its proper divisors (1528894351433).

16650357166663 is a wasteful number, since it uses less digits than its factorization.

16650357166663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268793185.

The product of its (nonzero) digits is 73483200, while the sum is 61.

The spelling of 16650357166663 in words is "sixteen trillion, six hundred fifty billion, three hundred fifty-seven million, one hundred sixty-six thousand, six hundred sixty-three".