65461362121644 has 12 divisors (see below), whose sum is σ = 152743178283864. Its totient is φ = 21820454040544.

The previous prime is 65461362121627. The next prime is 65461362121651. The reversal of 65461362121644 is 44612126316456.

It is a tau number, because it is divible by the number of its divisors (12).

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, 2727556755057 + ... + 2727556755080.

It is an arithmetic number, because the mean of its divisors is an integer number (12728598190322).

Almost surely, 2^{65461362121644} is an apocalyptic number.

It is an amenable number.

65461362121644 is an abundant number, since it is smaller than the sum of its proper divisors (87281816162220).

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

65461362121644 is a wasteful number, since it uses less digits than its factorization.

65461362121644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5455113510144 (or 5455113510142 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 51.

The spelling of 65461362121644 in words is "sixty-five trillion, four hundred sixty-one billion, three hundred sixty-two million, one hundred twenty-one thousand, six hundred forty-four".