66753201 has 4 divisors (see below), whose sum is σ = 89004272. Its totient is φ = 44502132.

The previous prime is 66753179. The next prime is 66753233. The reversal of 66753201 is 10235766.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 66753201 - 2⁹ = 66752689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66753241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11125531 + ... + 11125536.

It is an arithmetic number, because the mean of its divisors is an integer number (22251068).

Almost surely, 2^66753201 is an apocalyptic number.

It is an amenable number.

66753201 is a deficient number, since it is larger than the sum of its proper divisors (22251071).

66753201 is a wasteful number, since it uses less digits than its factorization.

66753201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22251070.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 66753201 is about 8170.2632148542. The cubic root of 66753201 is about 405.6554969501.

Adding to 66753201 its reverse (10235766), we get a palindrome (76988967).

The spelling of 66753201 in words is "sixty-six million, seven hundred fifty-three thousand, two hundred one".