66456265466 has 16 divisors (see below), whose sum is σ = 100111334400. Its totient is φ = 33085960368.

The previous prime is 66456265441. The next prime is 66456265489.

It is a happy number.

66456265466 is nontrivially palindromic in base 10.

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, 946895 + ... + 1014653.

It is an arithmetic number, because the mean of its divisors is an integer number (6256958400).

Almost surely, 2^66456265466 is an apocalyptic number.

66456265466 is a deficient number, since it is larger than the sum of its proper divisors (33655068934).

66456265466 is a wasteful number, since it uses less digits than its factorization.

66456265466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69853.

The product of its digits is 37324800, while the sum is 56.

The spelling of 66456265466 in words is "sixty-six billion, four hundred fifty-six million, two hundred sixty-five thousand, four hundred sixty-six".