65782503361 has 9 divisors (see below), whose sum is σ = 69432106881. Its totient is φ = 62315649684.

The previous prime is 65782503349. The next prime is 65782503407. The reversal of 65782503361 is 16330528756.

The square root of 65782503361 is 256481.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-65782503361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65782501361) 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 8 ways as a sum of consecutive naturals, for example, 4866390 + ... + 4879888.

Almost surely, 2^65782503361 is an apocalyptic number.

65782503361 is the 256481-st square number.

65782503361 is the 128241-st centered octagonal number.

It is an amenable number.

65782503361 is a deficient number, since it is larger than the sum of its proper divisors (3649603520).

65782503361 is an frugal number, since it uses more digits than its factorization.

65782503361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27036 (or 13518 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 65782503361 in words is "sixty-five billion, seven hundred eighty-two million, five hundred three thousand, three hundred sixty-one".