66271152 has 40 divisors (see below), whose sum is σ = 173554864. Its totient is φ = 21786624.

The previous prime is 66271103. The next prime is 66271189. The reversal of 66271152 is 25117266.

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, 5953 + ... + 12960.

Almost surely, 2^66271152 is an apocalyptic number.

It is an amenable number.

66271152 is an abundant number, since it is smaller than the sum of its proper divisors (107283712).

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

66271152 is a wasteful number, since it uses less digits than its factorization.

66271152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18997 (or 18991 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 66271152 is about 8140.7095513843. The cubic root of 66271152 is about 404.6766753424.

The spelling of 66271152 in words is "sixty-six million, two hundred seventy-one thousand, one hundred fifty-two".