66487454 has 32 divisors (see below), whose sum is σ = 111646080. Its totient is φ = 29440800.

The previous prime is 66487439. The next prime is 66487489. The reversal of 66487454 is 45478466.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234797 + ... + 235079.

It is an arithmetic number, because the mean of its divisors is an integer number (3488940).

Almost surely, 2^66487454 is an apocalyptic number.

66487454 is a deficient number, since it is larger than the sum of its proper divisors (45158626).

66487454 is a wasteful number, since it uses less digits than its factorization.

66487454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its digits is 645120, while the sum is 44.

The square root of 66487454 is about 8153.9839342496. The cubic root of 66487454 is about 405.1164710996.

The spelling of 66487454 in words is "sixty-six million, four hundred eighty-seven thousand, four hundred fifty-four".