65683532257 has 8 divisors (see below), whose sum is σ = 75378376832. Its totient is φ = 56066558400.

The previous prime is 65683532231. The next prime is 65683532269. The reversal of 65683532257 is 75223538656.

65683532257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 65683532257 - 2¹⁹ = 65683007969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65683532207) 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, 19465869 + ... + 19469242.

It is an arithmetic number, because the mean of its divisors is an integer number (9422297104).

Almost surely, 2^65683532257 is an apocalyptic number.

It is an amenable number.

65683532257 is a deficient number, since it is larger than the sum of its proper divisors (9694844575).

65683532257 is a wasteful number, since it uses less digits than its factorization.

65683532257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38935359.

The product of its digits is 9072000, while the sum is 52.

The spelling of 65683532257 in words is "sixty-five billion, six hundred eighty-three million, five hundred thirty-two thousand, two hundred fifty-seven".