66473474164 has 12 divisors (see below), whose sum is σ = 119033895904. Its totient is φ = 32463789624.

The previous prime is 66473474161. The next prime is 66473474167. The reversal of 66473474164 is 46147437466.

It is a happy number.

66473474164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66473474161) and next prime (66473474167).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66473474161) 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, 193236672 + ... + 193237015.

Almost surely, 2^66473474164 is an apocalyptic number.

It is an amenable number.

66473474164 is a deficient number, since it is larger than the sum of its proper divisors (52560421740).

66473474164 is a wasteful number, since it uses less digits than its factorization.

66473474164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386473734 (or 386473732 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 52.

The spelling of 66473474164 in words is "sixty-six billion, four hundred seventy-three million, four hundred seventy-four thousand, one hundred sixty-four".