65584340238 has 32 divisors (see below), whose sum is σ = 132922229760. Its totient is φ = 21569577120.

The previous prime is 65584340197. The next prime is 65584340279. The reversal of 65584340238 is 83204348556.

It is an interprime number because it is at equal distance from previous prime (65584340197) and next prime (65584340279).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638068 + ... + 733688.

It is an arithmetic number, because the mean of its divisors is an integer number (4153819680).

Almost surely, 2^65584340238 is an apocalyptic number.

65584340238 is an abundant number, since it is smaller than the sum of its proper divisors (67337889522).

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

65584340238 is a wasteful number, since it uses less digits than its factorization.

65584340238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97152.

The product of its (nonzero) digits is 2764800, while the sum is 48.

The spelling of 65584340238 in words is "sixty-five billion, five hundred eighty-four million, three hundred forty thousand, two hundred thirty-eight".