66455013 has 8 divisors (see below), whose sum is σ = 88732800. Its totient is φ = 44240288.

The previous prime is 66454987. The next prime is 66455017. The reversal of 66455013 is 31055466.

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 66455013 - 2⁹ = 66454501 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 (66455017) 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, 13248 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (11091600).

Almost surely, 2^66455013 is an apocalyptic number.

It is an amenable number.

66455013 is a deficient number, since it is larger than the sum of its proper divisors (22277787).

66455013 is a wasteful number, since it uses less digits than its factorization.

66455013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31531.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 66455013 is about 8151.9944185457. The cubic root of 66455013 is about 405.0505713409.

The spelling of 66455013 in words is "sixty-six million, four hundred fifty-five thousand, thirteen".