23424430066 has 4 divisors (see below), whose sum is σ = 35136645102. Its totient is φ = 11712215032.

The previous prime is 23424430039. The next prime is 23424430069. The reversal of 23424430066 is 66003442432.

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

It can be written as a sum of positive squares in only one way, i.e., 23402574441 + 21855625 = 152979^2 + 4675^2 .

It is not an unprimeable number, because it can be changed into a prime (23424430069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5856107515 + ... + 5856107518.

Almost surely, 2^23424430066 is an apocalyptic number.

23424430066 is a deficient number, since it is larger than the sum of its proper divisors (11712215036).

23424430066 is a wasteful number, since it uses less digits than its factorization.

23424430066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11712215035.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 23424430066 its reverse (66003442432), we get a palindrome (89427872498).

The spelling of 23424430066 in words is "twenty-three billion, four hundred twenty-four million, four hundred thirty thousand, sixty-six".