65461666616456 has 32 divisors (see below), whose sum is σ = 133907894513280. Its totient is φ = 29753296123200.

The previous prime is 65461666616453. The next prime is 65461666616459.

65461666616456 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (65461666616453) and next prime (65461666616459).

It is not an unprimeable number, because it can be changed into a prime (65461666616453) 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, 23773511 + ... + 26383766.

It is an arithmetic number, because the mean of its divisors is an integer number (4184621703540).

Almost surely, 2^{65461666616456} is an apocalyptic number.

It is an amenable number.

65461666616456 is an abundant number, since it is smaller than the sum of its proper divisors (68446227896824).

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

65461666616456 is a wasteful number, since it uses less digits than its factorization.

65461666616456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50172125 (or 50172121 counting only the distinct ones).

The product of its digits is 671846400, while the sum is 68.

The spelling of 65461666616456 in words is "sixty-five trillion, four hundred sixty-one billion, six hundred sixty-six million, six hundred sixteen thousand, four hundred fifty-six".