65497393236465 has 24 divisors (see below), whose sum is σ = 113715847634688. Its totient is φ = 34874394539040.

The previous prime is 65497393236461. The next prime is 65497393236529. The reversal of 65497393236465 is 56463239379456.

65497393236465 is a `hidden beast` number, since 6 + 5 + 4 + 9 + 73 + 93 + 2 + 3 + 6 + 465 = 666.

It is not a de Polignac number, because 65497393236465 - 2² = 65497393236461 is a prime.

It is a super-2 number, since 2×65497393236465² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65497393236393 and 65497393236402.

It is not an unprimeable number, because it can be changed into a prime (65497393236461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1198899891 + ... + 1198954520.

It is an arithmetic number, because the mean of its divisors is an integer number (4738160318112).

Almost surely, 2^{65497393236465} is an apocalyptic number.

It is an amenable number.

65497393236465 is a deficient number, since it is larger than the sum of its proper divisors (48218454398223).

65497393236465 is a wasteful number, since it uses less digits than its factorization.

65497393236465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2397855029 (or 2397855026 counting only the distinct ones).

The product of its digits is 2645395200, while the sum is 72.

The spelling of 65497393236465 in words is "sixty-five trillion, four hundred ninety-seven billion, three hundred ninety-three million, two hundred thirty-six thousand, four hundred sixty-five".