66472563 has 8 divisors (see below), whose sum is σ = 88671168. Its totient is φ = 44294504.

The previous prime is 66472519. The next prime is 66472591. The reversal of 66472563 is 36527466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 66472563 - 2¹⁰ = 66471539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66472663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5656 + ... + 12842.

It is an arithmetic number, because the mean of its divisors is an integer number (11083896).

Almost surely, 2^66472563 is an apocalyptic number.

66472563 is a deficient number, since it is larger than the sum of its proper divisors (22198605).

66472563 is a wasteful number, since it uses less digits than its factorization.

66472563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10273.

The product of its digits is 181440, while the sum is 39.

The square root of 66472563 is about 8153.0707711880. The cubic root of 66472563 is about 405.0862245922.

The spelling of 66472563 in words is "sixty-six million, four hundred seventy-two thousand, five hundred sixty-three".