66472574 has 12 divisors (see below), whose sum is σ = 114005304. Its totient is φ = 28475172.

The previous prime is 66472519. The next prime is 66472591. The reversal of 66472574 is 47527466.

It is a Curzon number.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 29417 + ... + 31595.

It is an arithmetic number, because the mean of its divisors is an integer number (9500442).

Almost surely, 2^66472574 is an apocalyptic number.

66472574 is a deficient number, since it is larger than the sum of its proper divisors (47532730).

66472574 is an frugal number, since it uses more digits than its factorization.

66472574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367 (or 2188 counting only the distinct ones).

The product of its digits is 282240, while the sum is 41.

The square root of 66472574 is about 8153.0714457804. The cubic root of 66472574 is about 405.0862469370.

The spelling of 66472574 in words is "sixty-six million, four hundred seventy-two thousand, five hundred seventy-four".