66302401 has 8 divisors (see below), whose sum is σ = 72566208. Its totient is φ = 60078000.

The previous prime is 66302351. The next prime is 66302407. The reversal of 66302401 is 10420366.

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 66302401 - 2¹³ = 66294209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (66302407) 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, 6270 + ... + 13111.

It is an arithmetic number, because the mean of its divisors is an integer number (9070776).

Almost surely, 2^66302401 is an apocalyptic number.

It is an amenable number.

66302401 is a deficient number, since it is larger than the sum of its proper divisors (6263807).

66302401 is a wasteful number, since it uses less digits than its factorization.

66302401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19703.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 66302401 is about 8142.6286296257. The cubic root of 66302401 is about 404.7402714117.

Adding to 66302401 its reverse (10420366), we get a palindrome (76722767).

The spelling of 66302401 in words is "sixty-six million, three hundred two thousand, four hundred one".