65668495203 has 54 divisors (see below), whose sum is σ = 104602497636. Its totient is φ = 41161151808.

The previous prime is 65668495199. The next prime is 65668495223. The reversal of 65668495203 is 30259486656.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

65668495203 is a `hidden beast` number, since 6 + 56 + 68 + 4 + 9 + 520 + 3 = 666.

It is not a de Polignac number, because 65668495203 - 2² = 65668495199 is a prime.

It is a super-2 number, since 2×65668495203² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65668495203.

It is not an unprimeable number, because it can be changed into a prime (65668495223) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 67909026 + ... + 67909992.

Almost surely, 2^65668495203 is an apocalyptic number.

65668495203 is a deficient number, since it is larger than the sum of its proper divisors (38934002433).

65668495203 is an frugal number, since it uses more digits than its factorization.

65668495203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1983 (or 987 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 54.

The spelling of 65668495203 in words is "sixty-five billion, six hundred sixty-eight million, four hundred ninety-five thousand, two hundred three".