65331800681 has 8 divisors (see below), whose sum is σ = 75389817984. Its totient is φ = 55455009120.

The previous prime is 65331800669. The next prime is 65331800693. The reversal of 65331800681 is 18600813356.

It is an interprime number because it is at equal distance from previous prime (65331800669) and next prime (65331800693).

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

It is not a de Polignac number, because 65331800681 - 2¹⁰ = 65331799657 is a prime.

It is a super-2 number, since 2×65331800681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65331800621) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 45305660 + ... + 45307101.

It is an arithmetic number, because the mean of its divisors is an integer number (9423727248).

Almost surely, 2^65331800681 is an apocalyptic number.

It is an amenable number.

65331800681 is a deficient number, since it is larger than the sum of its proper divisors (10058017303).

65331800681 is a wasteful number, since it uses less digits than its factorization.

65331800681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90612871.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 65331800681 in words is "sixty-five billion, three hundred thirty-one million, eight hundred thousand, six hundred eighty-one".