65198211 has 16 divisors (see below), whose sum is σ = 93762816. Its totient is φ = 40059936.

The previous prime is 65198209. The next prime is 65198219. The reversal of 65198211 is 11289156.

65198211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65198211 - 2¹ = 65198209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (65198219) 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 15 ways as a sum of consecutive naturals, for example, 49386 + ... + 50688.

It is an arithmetic number, because the mean of its divisors is an integer number (5860176).

Almost surely, 2^65198211 is an apocalyptic number.

65198211 is a deficient number, since it is larger than the sum of its proper divisors (28564605).

65198211 is a wasteful number, since it uses less digits than its factorization.

65198211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2602.

The product of its digits is 4320, while the sum is 33.

The square root of 65198211 is about 8074.5409157425. The cubic root of 65198211 is about 402.4808545090.

The spelling of 65198211 in words is "sixty-five million, one hundred ninety-eight thousand, two hundred eleven".