66466472 has 16 divisors (see below), whose sum is σ = 125280000. Its totient is φ = 33058480.

The previous prime is 66466471. The next prime is 66466493. The reversal of 66466472 is 27466466.

It is not an unprimeable number, because it can be changed into a prime (66466471) 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, 20222 + ... + 23277.

It is an arithmetic number, because the mean of its divisors is an integer number (7830000).

Almost surely, 2^66466472 is an apocalyptic number.

It is an amenable number.

66466472 is a deficient number, since it is larger than the sum of its proper divisors (58813528).

66466472 is a wasteful number, since it uses less digits than its factorization.

66466472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43696 (or 43692 counting only the distinct ones).

The product of its digits is 290304, while the sum is 41.

The square root of 66466472 is about 8152.6972223921. The cubic root of 66466472 is about 405.0738512889.

The spelling of 66466472 in words is "sixty-six million, four hundred sixty-six thousand, four hundred seventy-two".