65803775457 has 192 divisors, whose sum is σ = 117722419200. Its totient is φ = 32380508160.

The previous prime is 65803775447. The next prime is 65803775489. The reversal of 65803775457 is 75457730856.

It is not a de Polignac number, because 65803775457 - 2⁸ = 65803775201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 65803775397 and 65803775406.

It is not an unprimeable number, because it can be changed into a prime (65803775447) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 198802782 + ... + 198803112.

It is an arithmetic number, because the mean of its divisors is an integer number (613137600).

Almost surely, 2^65803775457 is an apocalyptic number.

It is an amenable number.

65803775457 is a deficient number, since it is larger than the sum of its proper divisors (51918643743).

65803775457 is a wasteful number, since it uses less digits than its factorization.

65803775457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516 (or 509 counting only the distinct ones).

The product of its (nonzero) digits is 24696000, while the sum is 57.

The spelling of 65803775457 in words is "sixty-five billion, eight hundred three million, seven hundred seventy-five thousand, four hundred fifty-seven".