66888201 has 8 divisors (see below), whose sum is σ = 89700480. Its totient is φ = 44334032.

The previous prime is 66888197. The next prime is 66888223. The reversal of 66888201 is 10288866.

66888201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66888201 - 2² = 66888197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 66888201.

It is not an unprimeable number, because it can be changed into a prime (66888271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63921 + ... + 64958.

It is an arithmetic number, because the mean of its divisors is an integer number (11212560).

Almost surely, 2^66888201 is an apocalyptic number.

It is an amenable number.

66888201 is a deficient number, since it is larger than the sum of its proper divisors (22812279).

66888201 is a wasteful number, since it uses less digits than its factorization.

66888201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129055.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 66888201 is about 8178.5207097616. The cubic root of 66888201 is about 405.9287753110.

The spelling of 66888201 in words is "sixty-six million, eight hundred eighty-eight thousand, two hundred one".