66471294296 has 16 divisors (see below), whose sum is σ = 135964011240. Its totient is φ = 30214224640.

The previous prime is 66471294271. The next prime is 66471294299. The reversal of 66471294296 is 69249217466.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66471294299) 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, 377677721 + ... + 377677896.

Almost surely, 2^66471294296 is an apocalyptic number.

It is an amenable number.

66471294296 is an abundant number, since it is smaller than the sum of its proper divisors (69492716944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66471294296 is a wasteful number, since it uses less digits than its factorization.

66471294296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755355634 (or 755355630 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 56.

The spelling of 66471294296 in words is "sixty-six billion, four hundred seventy-one million, two hundred ninety-four thousand, two hundred ninety-six".