65128976596 has 12 divisors (see below), whose sum is σ = 113999823252. Its totient is φ = 32557598528.

The previous prime is 65128976569. The next prime is 65128976603. The reversal of 65128976596 is 69567982156.

It can be written as a sum of positive squares in 2 ways, for example, as 15716132496 + 49412844100 = 125364^2 + 222290^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701145 + ... + 1739008.

It is an arithmetic number, because the mean of its divisors is an integer number (9499985271).

Almost surely, 2^65128976596 is an apocalyptic number.

It is an amenable number.

65128976596 is a deficient number, since it is larger than the sum of its proper divisors (48870846656).

65128976596 is a wasteful number, since it uses less digits than its factorization.

65128976596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3444890 (or 3444888 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 64.

The spelling of 65128976596 in words is "sixty-five billion, one hundred twenty-eight million, nine hundred seventy-six thousand, five hundred ninety-six".