66423206103 has 8 divisors (see below), whose sum is σ = 88568012400. Its totient is φ = 44280268608.

The previous prime is 66423206081. The next prime is 66423206131. The reversal of 66423206103 is 30160232466.

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

It is not a de Polignac number, because 66423206103 - 2²⁶ = 66356097239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66423206203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 382048 + ... + 528021.

It is an arithmetic number, because the mean of its divisors is an integer number (11071001550).

Almost surely, 2^66423206103 is an apocalyptic number.

66423206103 is a deficient number, since it is larger than the sum of its proper divisors (22144806297).

66423206103 is a wasteful number, since it uses less digits than its factorization.

66423206103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934401.

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 66423206103 its reverse (30160232466), we get a palindrome (96583438569).

The spelling of 66423206103 in words is "sixty-six billion, four hundred twenty-three million, two hundred six thousand, one hundred three".