65299544016 has 80 divisors (see below), whose sum is σ = 204129684864. Its totient is φ = 17559539712.

The previous prime is 65299543997. The next prime is 65299544059. The reversal of 65299544016 is 61044599256.

It is a super-3 number, since 3×65299544016³ (a number of 33 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 65299544016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5710285 + ... + 5721708.

Almost surely, 2^65299544016 is an apocalyptic number.

It is an amenable number.

65299544016 is an abundant number, since it is smaller than the sum of its proper divisors (138830140848).

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

65299544016 is a wasteful number, since it uses less digits than its factorization.

65299544016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11432028 (or 11432022 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 51.

The spelling of 65299544016 in words is "sixty-five billion, two hundred ninety-nine million, five hundred forty-four thousand, sixteen".