65633280140 has 12 divisors (see below), whose sum is σ = 137829888336. Its totient is φ = 26253312048.

The previous prime is 65633280131. The next prime is 65633280161. The reversal of 65633280140 is 4108233656.

It is a junction number, because it is equal to n+sod(n) for n = 65633280094 and 65633280103.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1640831984 + ... + 1640832023.

It is an arithmetic number, because the mean of its divisors is an integer number (11485824028).

Almost surely, 2^65633280140 is an apocalyptic number.

It is an amenable number.

65633280140 is an abundant number, since it is smaller than the sum of its proper divisors (72196608196).

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

65633280140 is a wasteful number, since it uses less digits than its factorization.

65633280140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281664016 (or 3281664014 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The spelling of 65633280140 in words is "sixty-five billion, six hundred thirty-three million, two hundred eighty thousand, one hundred forty".