65161051647 has 8 divisors (see below), whose sum is σ = 86987229360. Its totient is φ = 43387787520.

The previous prime is 65161051619. The next prime is 65161051649. The reversal of 65161051647 is 74615016156.

It is a happy number.

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

It is not a de Polignac number, because 65161051647 - 2²³ = 65152663039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65161051599 and 65161051608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65161051649) 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, 13225522 + ... + 13230447.

It is an arithmetic number, because the mean of its divisors is an integer number (10873403670).

Almost surely, 2^65161051647 is an apocalyptic number.

65161051647 is a deficient number, since it is larger than the sum of its proper divisors (21826177713).

65161051647 is a wasteful number, since it uses less digits than its factorization.

65161051647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26456793.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 65161051647 in words is "sixty-five billion, one hundred sixty-one million, fifty-one thousand, six hundred forty-seven".