65136157328 has 40 divisors (see below), whose sum is σ = 137855346336. Its totient is φ = 29568377600.

The previous prime is 65136157309. The next prime is 65136157403. The reversal of 65136157328 is 82375163156.

It is an unprimeable number.

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, 109226 + ... + 377097.

Almost surely, 2^65136157328 is an apocalyptic number.

It is an amenable number.

65136157328 is an abundant number, since it is smaller than the sum of its proper divisors (72719189008).

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

65136157328 is a wasteful number, since it uses less digits than its factorization.

65136157328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487103 (or 487097 counting only the distinct ones).

The product of its digits is 907200, while the sum is 47.

The spelling of 65136157328 in words is "sixty-five billion, one hundred thirty-six million, one hundred fifty-seven thousand, three hundred twenty-eight".