66463485 has 32 divisors (see below), whose sum is σ = 117002880. Its totient is φ = 32215040.

The previous prime is 66463459. The next prime is 66463487. The reversal of 66463485 is 58436466.

It is not a de Polignac number, because 66463485 - 2¹⁶ = 66397949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66463487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18301 + ... + 21629.

It is an arithmetic number, because the mean of its divisors is an integer number (3656340).

Almost surely, 2^66463485 is an apocalyptic number.

It is an amenable number.

66463485 is a deficient number, since it is larger than the sum of its proper divisors (50539395).

66463485 is a wasteful number, since it uses less digits than its factorization.

66463485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3370 (or 3348 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 66463485 is about 8152.5140294268. The cubic root of 66463485 is about 405.0677831983.

The spelling of 66463485 in words is "sixty-six million, four hundred sixty-three thousand, four hundred eighty-five".