66207104 has 16 divisors (see below), whose sum is σ = 131897220. Its totient is φ = 33103488.

The previous prime is 66207091. The next prime is 66207109. The reversal of 66207104 is 40170266.

66207104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66207109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258494 + ... + 258749.

Almost surely, 2^66207104 is an apocalyptic number.

66207104 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

66207104 is a deficient number, since it is larger than the sum of its proper divisors (65690116).

66207104 is an equidigital number, since it uses as much as digits as its factorization.

66207104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517257 (or 517245 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 66207104 is about 8136.7747910336. The cubic root of 66207104 is about 404.5462662320.

The spelling of 66207104 in words is "sixty-six million, two hundred seven thousand, one hundred four".