66165353 has 8 divisors (see below), whose sum is σ = 69755520. Its totient is φ = 62586000.

The previous prime is 66165317. The next prime is 66165367. The reversal of 66165353 is 35356166.

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

It is not a de Polignac number, because 66165353 - 2⁸ = 66165097 is a prime.

It is a super-2 number, since 2×66165353² = 8755707875229218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66165653) 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, 11951 + ... + 16587.

It is an arithmetic number, because the mean of its divisors is an integer number (8719440).

Almost surely, 2^66165353 is an apocalyptic number.

It is an amenable number.

66165353 is a deficient number, since it is larger than the sum of its proper divisors (3590167).

66165353 is a wasteful number, since it uses less digits than its factorization.

66165353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5407.

The product of its digits is 48600, while the sum is 35.

The square root of 66165353 is about 8134.2088121710. The cubic root of 66165353 is about 404.4612110955.

The spelling of 66165353 in words is "sixty-six million, one hundred sixty-five thousand, three hundred fifty-three".