66485355 has 8 divisors (see below), whose sum is σ = 106376592. Its totient is φ = 35458848.

The previous prime is 66485347. The next prime is 66485369. The reversal of 66485355 is 55358466.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66485355 - 2³ = 66485347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2216164 + ... + 2216193.

It is an arithmetic number, because the mean of its divisors is an integer number (13297074).

Almost surely, 2^66485355 is an apocalyptic number.

66485355 is a deficient number, since it is larger than the sum of its proper divisors (39891237).

66485355 is a wasteful number, since it uses less digits than its factorization.

66485355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432365.

The product of its digits is 432000, while the sum is 42.

The square root of 66485355 is about 8153.8552231444. The cubic root of 66485355 is about 405.1122078972.

The spelling of 66485355 in words is "sixty-six million, four hundred eighty-five thousand, three hundred fifty-five".