66354211 has 8 divisors (see below), whose sum is σ = 82727424. Its totient is φ = 51704520.

The previous prime is 66354199. The next prime is 66354221. The reversal of 66354211 is 11245366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 66354211 - 2⁹ = 66353699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66354211.

It is not an unprimeable number, because it can be changed into a prime (66354221) 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, 430795 + ... + 430948.

It is an arithmetic number, because the mean of its divisors is an integer number (10340928).

Almost surely, 2^66354211 is an apocalyptic number.

66354211 is a deficient number, since it is larger than the sum of its proper divisors (16373213).

66354211 is a wasteful number, since it uses less digits than its factorization.

66354211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861761.

The product of its digits is 4320, while the sum is 28.

The square root of 66354211 is about 8145.8094134346. The cubic root of 66354211 is about 404.8456679660.

Adding to 66354211 its reverse (11245366), we get a palindrome (77599577).

The spelling of 66354211 in words is "sixty-six million, three hundred fifty-four thousand, two hundred eleven".