66463469 has 4 divisors (see below), whose sum is σ = 66501600. Its totient is φ = 66425340.

The previous prime is 66463459. The next prime is 66463487. The reversal of 66463469 is 96436466.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 66463469 - 2⁸ = 66463213 is a prime.

It is a super-2 number, since 2×66463469² = 8834785423027922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66463429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16319 + ... + 19980.

It is an arithmetic number, because the mean of its divisors is an integer number (16625400).

Almost surely, 2^66463469 is an apocalyptic number.

It is an amenable number.

66463469 is a deficient number, since it is larger than the sum of its proper divisors (38131).

66463469 is a wasteful number, since it uses less digits than its factorization.

66463469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38130.

The product of its digits is 559872, while the sum is 44.

The square root of 66463469 is about 8152.5130481343. The cubic root of 66463469 is about 405.0677506938.

The spelling of 66463469 in words is "sixty-six million, four hundred sixty-three thousand, four hundred sixty-nine".