65198088 has 32 divisors (see below), whose sum is σ = 181106400. Its totient is φ = 21732624.

The previous prime is 65198083. The next prime is 65198113. The reversal of 65198088 is 88089156.

It is not an unprimeable number, because it can be changed into a prime (65198083) 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 7 ways as a sum of consecutive naturals, for example, 150706 + ... + 151137.

It is an arithmetic number, because the mean of its divisors is an integer number (5659575).

Almost surely, 2^65198088 is an apocalyptic number.

It is an amenable number.

65198088 is an abundant number, since it is smaller than the sum of its proper divisors (115908312).

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

65198088 is a wasteful number, since it uses less digits than its factorization.

65198088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301858 (or 301848 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The square root of 65198088 is about 8074.5332992068. The cubic root of 65198088 is about 402.4806014081.

The spelling of 65198088 in words is "sixty-five million, one hundred ninety-eight thousand, eighty-eight".