66585063 has 16 divisors (see below), whose sum is σ = 93680000. Its totient is φ = 41951520.

The previous prime is 66585061. The next prime is 66585067. The reversal of 66585063 is 36058566.

It is not a de Polignac number, because 66585063 - 2¹ = 66585061 is a prime.

It is a super-2 number, since 2×66585063² = 8867141229427938, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66585061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27273 + ... + 29613.

It is an arithmetic number, because the mean of its divisors is an integer number (5855000).

Almost surely, 2^66585063 is an apocalyptic number.

66585063 is a deficient number, since it is larger than the sum of its proper divisors (27094937).

66585063 is a wasteful number, since it uses less digits than its factorization.

66585063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 66585063 is about 8159.9670955219. The cubic root of 66585063 is about 405.3146221603.

The spelling of 66585063 in words is "sixty-six million, five hundred eighty-five thousand, sixty-three".