66456265465 has 8 divisors (see below), whose sum is σ = 81444274560. Its totient is φ = 52033841712.

The previous prime is 66456265441. The next prime is 66456265489. The reversal of 66456265465 is 56456265466.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (66456265441) and next prime (66456265489).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66456265465 - 2¹¹ = 66456263417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141396075 + ... + 141396544.

It is an arithmetic number, because the mean of its divisors is an integer number (10180534320).

Almost surely, 2^66456265465 is an apocalyptic number.

It is an amenable number.

66456265465 is a deficient number, since it is larger than the sum of its proper divisors (14988009095).

66456265465 is a wasteful number, since it uses less digits than its factorization.

66456265465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282792671.

The product of its digits is 31104000, while the sum is 55.

Subtracting from 66456265465 its reverse (56456265466), we obtain a palindrome (9999999999).

The spelling of 66456265465 in words is "sixty-six billion, four hundred fifty-six million, two hundred sixty-five thousand, four hundred sixty-five".