64216027166 has 4 divisors (see below), whose sum is σ = 96324040752. Its totient is φ = 32108013582.

The previous prime is 64216027129. The next prime is 64216027181. The reversal of 64216027166 is 66172061246.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66172061246 = 2 ⋅33086030623.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16054006790 + ... + 16054006793.

It is an arithmetic number, because the mean of its divisors is an integer number (24081010188).

Almost surely, 2^64216027166 is an apocalyptic number.

64216027166 is a deficient number, since it is larger than the sum of its proper divisors (32108013586).

64216027166 is a wasteful number, since it uses less digits than its factorization.

64216027166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32108013585.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 64216027166 in words is "sixty-four billion, two hundred sixteen million, twenty-seven thousand, one hundred sixty-six".