65116511508 has 12 divisors (see below), whose sum is σ = 151938526880. Its totient is φ = 21705503832.

The previous prime is 65116511501. The next prime is 65116511539. The reversal of 65116511508 is 80511561156.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65116511501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2713187968 + ... + 2713187991.

Almost surely, 2^65116511508 is an apocalyptic number.

It is an amenable number.

65116511508 is an abundant number, since it is smaller than the sum of its proper divisors (86822015372).

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

65116511508 is a wasteful number, since it uses less digits than its factorization.

65116511508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426375966 (or 5426375964 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 39.

The spelling of 65116511508 in words is "sixty-five billion, one hundred sixteen million, five hundred eleven thousand, five hundred eight".