65456303652520 has 128 divisors (see below), whose sum is σ = 161691566256000. Its totient is φ = 23650718515200.

The previous prime is 65456303652461. The next prime is 65456303652557. The reversal of 65456303652520 is 2525630365456.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46924567 + ... + 48299353.

It is an arithmetic number, because the mean of its divisors is an integer number (1263215361375).

Almost surely, 2^{65456303652520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65456303652520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80845783128000).

65456303652520 is an abundant number, since it is smaller than the sum of its proper divisors (96235262603480).

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

65456303652520 is a wasteful number, since it uses less digits than its factorization.

65456303652520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1375499 (or 1375495 counting only the distinct ones).

The product of its (nonzero) digits is 19440000, while the sum is 52.

The spelling of 65456303652520 in words is "sixty-five trillion, four hundred fifty-six billion, three hundred three million, six hundred fifty-two thousand, five hundred twenty".