66704326205 has 32 divisors (see below), whose sum is σ = 88118046720. Its totient is φ = 48070955520.

The previous prime is 66704326177. The next prime is 66704326207. The reversal of 66704326205 is 50262340766.

It is not a de Polignac number, because 66704326205 - 2⁸ = 66704325949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66704326207) 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 31 ways as a sum of consecutive naturals, for example, 6120401 + ... + 6131289.

It is an arithmetic number, because the mean of its divisors is an integer number (2753688960).

Almost surely, 2^66704326205 is an apocalyptic number.

It is an amenable number.

66704326205 is a deficient number, since it is larger than the sum of its proper divisors (21413720515).

66704326205 is a wasteful number, since it uses less digits than its factorization.

66704326205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11909.

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 66704326205 in words is "sixty-six billion, seven hundred four million, three hundred twenty-six thousand, two hundred five".