66485735 has 4 divisors (see below), whose sum is σ = 79782888. Its totient is φ = 53188584.

The previous prime is 66485729. The next prime is 66485747. The reversal of 66485735 is 53758466.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 66485735 - 2¹⁰ = 66484711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6648569 + ... + 6648578.

It is an arithmetic number, because the mean of its divisors is an integer number (19945722).

Almost surely, 2^66485735 is an apocalyptic number.

66485735 is a deficient number, since it is larger than the sum of its proper divisors (13297153).

66485735 is a wasteful number, since it uses less digits than its factorization.

66485735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13297152.

The product of its digits is 604800, while the sum is 44.

The square root of 66485735 is about 8153.8785249720. The cubic root of 66485735 is about 405.1129797080.

The spelling of 66485735 in words is "sixty-six million, four hundred eighty-five thousand, seven hundred thirty-five".