66169313 has 8 divisors (see below), whose sum is σ = 75714432. Its totient is φ = 56647296.

The previous prime is 66169309. The next prime is 66169333. The reversal of 66169313 is 31396166.

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 66169313 - 2² = 66169309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66169333) 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, 881 + ... + 11537.

It is an arithmetic number, because the mean of its divisors is an integer number (9464304).

Almost surely, 2^66169313 is an apocalyptic number.

It is an amenable number.

66169313 is a deficient number, since it is larger than the sum of its proper divisors (9545119).

66169313 is a wasteful number, since it uses less digits than its factorization.

66169313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11551.

The product of its digits is 17496, while the sum is 35.

The square root of 66169313 is about 8134.4522249504. The cubic root of 66169313 is about 404.4692799431.

The spelling of 66169313 in words is "sixty-six million, one hundred sixty-nine thousand, three hundred thirteen".