65112198 has 8 divisors (see below), whose sum is σ = 130224408. Its totient is φ = 21704064.

The previous prime is 65112197. The next prime is 65112199. The reversal of 65112198 is 89121156.

It is an interprime number because it is at equal distance from previous prime (65112197) and next prime (65112199).

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

65112198 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65112197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5426011 + ... + 5426022.

It is an arithmetic number, because the mean of its divisors is an integer number (16278051).

Almost surely, 2^65112198 is an apocalyptic number.

65112198 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65112198 is a wasteful number, since it uses less digits than its factorization.

65112198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10852038.

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

The square root of 65112198 is about 8069.2129727750. The cubic root of 65112198 is about 402.3037851286.

The spelling of 65112198 in words is "sixty-five million, one hundred twelve thousand, one hundred ninety-eight".