866184143641606 has 8 divisors (see below), whose sum is σ = 1306454537095344. Its totient is φ = 430699297943160.

The previous prime is 866184143641603. The next prime is 866184143641693. The reversal of 866184143641606 is 606146341481668.

It is a happy number.

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

It is a super-2 number, since 2×866184143641606² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866184143641603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1196386938370 + ... + 1196386939093.

It is an arithmetic number, because the mean of its divisors is an integer number (163306817136918).

Almost surely, 2^{866184143641606} is an apocalyptic number.

866184143641606 is a deficient number, since it is larger than the sum of its proper divisors (440270393453738).

866184143641606 is a wasteful number, since it uses less digits than its factorization.

866184143641606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392773877646.

The product of its (nonzero) digits is 95551488, while the sum is 64.

The spelling of 866184143641606 in words is "eight hundred sixty-six trillion, one hundred eighty-four billion, one hundred forty-three million, six hundred forty-one thousand, six hundred six".