65719754009361 has 48 divisors (see below), whose sum is σ = 95482360733760. Its totient is φ = 43558147100160.

The previous prime is 65719754009347. The next prime is 65719754009363. The reversal of 65719754009361 is 16390045791756.

It is a happy number.

65719754009361 is a `hidden beast` number, since 6 + 5 + 7 + 19 + 75 + 400 + 93 + 61 = 666.

It is not a de Polignac number, because 65719754009361 - 2⁷ = 65719754009233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65719754009363) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5759327746 + ... + 5759339156.

It is an arithmetic number, because the mean of its divisors is an integer number (1989215848620).

Almost surely, 2^{65719754009361} is an apocalyptic number.

It is an amenable number.

65719754009361 is a deficient number, since it is larger than the sum of its proper divisors (29762606724399).

65719754009361 is a wasteful number, since it uses less digits than its factorization.

65719754009361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15406 (or 15403 counting only the distinct ones).

The product of its (nonzero) digits is 42865200, while the sum is 63.

The spelling of 65719754009361 in words is "sixty-five trillion, seven hundred nineteen billion, seven hundred fifty-four million, nine thousand, three hundred sixty-one".