66210322472 has 32 divisors (see below), whose sum is σ = 146771654400. Its totient is φ = 27397374144.

The previous prime is 66210322469. The next prime is 66210322531. The reversal of 66210322472 is 27422301266.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20383328 + ... + 20386575.

It is an arithmetic number, because the mean of its divisors is an integer number (4586614200).

Almost surely, 2^66210322472 is an apocalyptic number.

It is an amenable number.

66210322472 is an abundant number, since it is smaller than the sum of its proper divisors (80561331928).

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

66210322472 is a wasteful number, since it uses less digits than its factorization.

66210322472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40769945 (or 40769941 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The spelling of 66210322472 in words is "sixty-six billion, two hundred ten million, three hundred twenty-two thousand, four hundred seventy-two".