65864332389897 has 12 divisors (see below), whose sum is σ = 95137558747504. Its totient is φ = 43909467354360.

The previous prime is 65864332389893. The next prime is 65864332389923. The reversal of 65864332389897 is 79898323346856.

65864332389897 is a `hidden beast` number, since 6 + 5 + 8 + 6 + 433 + 2 + 3 + 8 + 98 + 97 = 666.

It is not a de Polignac number, because 65864332389897 - 2² = 65864332389893 is a prime.

It is a super-2 number, since 2×65864332389897² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65864332389893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2358343 + ... + 11717100.

Almost surely, 2^{65864332389897} is an apocalyptic number.

It is an amenable number.

65864332389897 is a deficient number, since it is larger than the sum of its proper divisors (29273226357607).

65864332389897 is a wasteful number, since it uses less digits than its factorization.

65864332389897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14595380 (or 14595377 counting only the distinct ones).

The product of its digits is 11287019520, while the sum is 81.

The spelling of 65864332389897 in words is "sixty-five trillion, eight hundred sixty-four billion, three hundred thirty-two million, three hundred eighty-nine thousand, eight hundred ninety-seven".