65808638059 has 8 divisors (see below), whose sum is σ = 68943474432. Its totient is φ = 62696601000.

The previous prime is 65808638047. The next prime is 65808638081. The reversal of 65808638059 is 95083680856.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 65808638059 - 2⁷ = 65808637931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65808637994 and 65808638012.

It is not an unprimeable number, because it can be changed into a prime (65808638029) 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, 5693919 + ... + 5705464.

It is an arithmetic number, because the mean of its divisors is an integer number (8617934304).

Almost surely, 2^65808638059 is an apocalyptic number.

65808638059 is a deficient number, since it is larger than the sum of its proper divisors (3134836373).

65808638059 is a wasteful number, since it uses less digits than its factorization.

65808638059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11399657.

The product of its (nonzero) digits is 12441600, while the sum is 58.

The spelling of 65808638059 in words is "sixty-five billion, eight hundred eight million, six hundred thirty-eight thousand, fifty-nine".