67064188838223 has 4 divisors (see below), whose sum is σ = 89418918450968. Its totient is φ = 44709459225480.

The previous prime is 67064188838177. The next prime is 67064188838237. The reversal of 67064188838223 is 32283888146076.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 67064188838223 - 2¹⁶ = 67064188772687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67064188838243) 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, 11177364806368 + ... + 11177364806373.

It is an arithmetic number, because the mean of its divisors is an integer number (22354729612742).

Almost surely, 2^{67064188838223} is an apocalyptic number.

67064188838223 is a deficient number, since it is larger than the sum of its proper divisors (22354729612745).

67064188838223 is a wasteful number, since it uses less digits than its factorization.

67064188838223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22354729612744.

The product of its (nonzero) digits is 148635648, while the sum is 66.

The spelling of 67064188838223 in words is "sixty-seven trillion, sixty-four billion, one hundred eighty-eight million, eight hundred thirty-eight thousand, two hundred twenty-three".