65065500610021 has 8 divisors (see below), whose sum is σ = 65099737612800. Its totient is φ = 65031265482240.

The previous prime is 65065500610007. The next prime is 65065500610037. The reversal of 65065500610021 is 12001600556056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65065500610021 - 2²⁷ = 65065366392293 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 (65065500610081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71883900 + ... + 72783418.

It is an arithmetic number, because the mean of its divisors is an integer number (8137467201600).

Almost surely, 2^{65065500610021} is an apocalyptic number.

It is an amenable number.

65065500610021 is a deficient number, since it is larger than the sum of its proper divisors (34237002779).

65065500610021 is a wasteful number, since it uses less digits than its factorization.

65065500610021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937499.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 65065500610021 in words is "sixty-five trillion, sixty-five billion, five hundred million, six hundred ten thousand, twenty-one".