66363423 has 16 divisors (see below), whose sum is σ = 102170880. Its totient is φ = 37529856.

The previous prime is 66363419. The next prime is 66363439. The reversal of 66363423 is 32436366.

It is not a de Polignac number, because 66363423 - 2² = 66363419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66363413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14253 + ... + 18326.

It is an arithmetic number, because the mean of its divisors is an integer number (6385680).

Almost surely, 2^66363423 is an apocalyptic number.

66363423 is a deficient number, since it is larger than the sum of its proper divisors (35807457).

66363423 is a wasteful number, since it uses less digits than its factorization.

66363423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32686.

The product of its digits is 46656, while the sum is 33.

The square root of 66363423 is about 8146.3748379264. The cubic root of 66363423 is about 404.8644020983.

Adding to 66363423 its reverse (32436366), we get a palindrome (98799789).

The spelling of 66363423 in words is "sixty-six million, three hundred sixty-three thousand, four hundred twenty-three".