65544134461 has 16 divisors (see below), whose sum is σ = 72239186880. Its totient is φ = 59101637760.

The previous prime is 65544134459. The next prime is 65544134473. The reversal of 65544134461 is 16443144556.

It is a cyclic number.

It is not a de Polignac number, because 65544134461 - 2¹ = 65544134459 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 (65544132461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245235 + ... + 437296.

It is an arithmetic number, because the mean of its divisors is an integer number (4514949180).

Almost surely, 2^65544134461 is an apocalyptic number.

It is an amenable number.

65544134461 is a deficient number, since it is larger than the sum of its proper divisors (6695052419).

65544134461 is a wasteful number, since it uses less digits than its factorization.

65544134461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682716.

The product of its digits is 691200, while the sum is 43.

The spelling of 65544134461 in words is "sixty-five billion, five hundred forty-four million, one hundred thirty-four thousand, four hundred sixty-one".