66456265468 has 24 divisors (see below), whose sum is σ = 117862819200. Its totient is φ = 32782810368.

The previous prime is 66456265441. The next prime is 66456265489. The reversal of 66456265468 is 86456265466.

It is a congruent number.

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, 41548 + ... + 366931.

It is an arithmetic number, because the mean of its divisors is an integer number (4910950800).

Almost surely, 2^66456265468 is an apocalyptic number.

It is an amenable number.

66456265468 is a deficient number, since it is larger than the sum of its proper divisors (51406553732).

66456265468 is a wasteful number, since it uses less digits than its factorization.

66456265468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409029 (or 409027 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 58.

The spelling of 66456265468 in words is "sixty-six billion, four hundred fifty-six million, two hundred sixty-five thousand, four hundred sixty-eight".