3665646416206 has 8 divisors (see below), whose sum is σ = 5498509502304. Its totient is φ = 1832809915440.

The previous prime is 3665646416167. The next prime is 3665646416207. The reversal of 3665646416206 is 6026146465663.

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

It is a super-3 number, since 3×3665646416206³ (a number of 39 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3665646416207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6297975 + ... + 6855346.

It is an arithmetic number, because the mean of its divisors is an integer number (687313687788).

Almost surely, 2^{3665646416206} is an apocalyptic number.

3665646416206 is a deficient number, since it is larger than the sum of its proper divisors (1832863086098).

3665646416206 is a wasteful number, since it uses less digits than its factorization.

3665646416206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13292666.

The product of its (nonzero) digits is 22394880, while the sum is 55.

The spelling of 3665646416206 in words is "three trillion, six hundred sixty-five billion, six hundred forty-six million, four hundred sixteen thousand, two hundred six".