65051516650 has 24 divisors (see below), whose sum is σ = 121004046540. Its totient is φ = 26018837760.

The previous prime is 65051516633. The next prime is 65051516659. The reversal of 65051516650 is 5661515056.

It can be written as a sum of positive squares in 6 ways, for example, as 14438665921 + 50612850729 = 120161^2 + 224973^2 .

It is not an unprimeable number, because it can be changed into a prime (65051516659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 896946 + ... + 966754.

Almost surely, 2^65051516650 is an apocalyptic number.

65051516650 is a deficient number, since it is larger than the sum of its proper divisors (55952529890).

65051516650 is a wasteful number, since it uses less digits than its factorization.

65051516650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88458 (or 88453 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 40.

The spelling of 65051516650 in words is "sixty-five billion, fifty-one million, five hundred sixteen thousand, six hundred fifty".