65005330772461 has 32 divisors (see below), whose sum is σ = 66869607168000. Its totient is φ = 63174777120000.

The previous prime is 65005330772401. The next prime is 65005330772471. The reversal of 65005330772461 is 16427703350056.

It is a cyclic number.

It is not a de Polignac number, because 65005330772461 - 2⁹ = 65005330771949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65005330772401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5937096615 + ... + 5937107563.

It is an arithmetic number, because the mean of its divisors is an integer number (2089675224000).

Almost surely, 2^{65005330772461} is an apocalyptic number.

It is an amenable number.

65005330772461 is a deficient number, since it is larger than the sum of its proper divisors (1864276395539).

65005330772461 is a wasteful number, since it uses less digits than its factorization.

65005330772461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15421.

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 65005330772461 in words is "sixty-five trillion, five billion, three hundred thirty million, seven hundred seventy-two thousand, four hundred sixty-one".