65453061861 has 12 divisors (see below), whose sum is σ = 103138158240. Its totient is φ = 39668522280.

The previous prime is 65453061859. The next prime is 65453061871. The reversal of 65453061861 is 16816035456.

65453061861 is a `hidden beast` number, since 6 + 54 + 530 + 6 + 1 + 8 + 61 = 666.

It is not a de Polignac number, because 65453061861 - 2¹ = 65453061859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65453061841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330570921 + ... + 330571118.

It is an arithmetic number, because the mean of its divisors is an integer number (8594846520).

Almost surely, 2^65453061861 is an apocalyptic number.

It is an amenable number.

65453061861 is a deficient number, since it is larger than the sum of its proper divisors (37685096379).

65453061861 is a wasteful number, since it uses less digits than its factorization.

65453061861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661142056 (or 661142053 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 65453061861 in words is "sixty-five billion, four hundred fifty-three million, sixty-one thousand, eight hundred sixty-one".