66471196 has 48 divisors (see below), whose sum is σ = 139426560. Its totient is φ = 27371520.

The previous prime is 66471193. The next prime is 66471217. The reversal of 66471196 is 69117466.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66471191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17500 + ... + 20956.

It is an arithmetic number, because the mean of its divisors is an integer number (2904720).

Almost surely, 2^66471196 is an apocalyptic number.

It is an amenable number.

66471196 is an abundant number, since it is smaller than the sum of its proper divisors (72955364).

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

66471196 is a wasteful number, since it uses less digits than its factorization.

66471196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3514 (or 3512 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 66471196 is about 8152.9869373132. The cubic root of 66471196 is about 405.0834477239.

The spelling of 66471196 in words is "sixty-six million, four hundred seventy-one thousand, one hundred ninety-six".