66456265467 has 4 divisors (see below), whose sum is σ = 88608353960. Its totient is φ = 44304176976.

The previous prime is 66456265441. The next prime is 66456265489. The reversal of 66456265467 is 76456265466.

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

It is not a de Polignac number, because 66456265467 - 2¹⁰ = 66456264443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66456264467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11076044242 + ... + 11076044247.

It is an arithmetic number, because the mean of its divisors is an integer number (22152088490).

Almost surely, 2^66456265467 is an apocalyptic number.

66456265467 is a deficient number, since it is larger than the sum of its proper divisors (22152088493).

66456265467 is a wasteful number, since it uses less digits than its factorization.

66456265467 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22152088492.

The product of its digits is 43545600, while the sum is 57.

Subtracting 66456265467 from its reverse (76456265466), we obtain a palindrome (9999999999).

The spelling of 66456265467 in words is "sixty-six billion, four hundred fifty-six million, two hundred sixty-five thousand, four hundred sixty-seven".