66450230223 has 32 divisors (see below), whose sum is σ = 96807626496. Its totient is φ = 40299890688.

The previous prime is 66450230183. The next prime is 66450230233. The reversal of 66450230223 is 32203205466.

It is not a de Polignac number, because 66450230223 - 2¹³ = 66450222031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66450230233) 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, 764136 + ... + 846642.

It is an arithmetic number, because the mean of its divisors is an integer number (3025238328).

Almost surely, 2^66450230223 is an apocalyptic number.

66450230223 is a deficient number, since it is larger than the sum of its proper divisors (30357396273).

66450230223 is a wasteful number, since it uses less digits than its factorization.

66450230223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82823.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 66450230223 its reverse (32203205466), we get a palindrome (98653435689).

The spelling of 66450230223 in words is "sixty-six billion, four hundred fifty million, two hundred thirty thousand, two hundred twenty-three".