66357201 has 8 divisors (see below), whose sum is σ = 88724160. Its totient is φ = 44114192.

The previous prime is 66357197. The next prime is 66357211. The reversal of 66357201 is 10275366.

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 66357201 - 2² = 66357197 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (66357211) 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, 29730 + ... + 31883.

It is an arithmetic number, because the mean of its divisors is an integer number (11090520).

Almost surely, 2^66357201 is an apocalyptic number.

It is an amenable number.

66357201 is a deficient number, since it is larger than the sum of its proper divisors (22366959).

66357201 is a wasteful number, since it uses less digits than its factorization.

66357201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61975.

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

The square root of 66357201 is about 8145.9929413178. The cubic root of 66357201 is about 404.8517488177.

The spelling of 66357201 in words is "sixty-six million, three hundred fifty-seven thousand, two hundred one".