65649660197463 has 24 divisors (see below), whose sum is σ = 96726251024000. Its totient is φ = 42896560308624.

The previous prime is 65649660197437. The next prime is 65649660197467. The reversal of 65649660197463 is 36479106694656.

65649660197463 is a `hidden beast` number, since 6 + 5 + 6 + 4 + 9 + 6 + 601 + 9 + 7 + 4 + 6 + 3 = 666.

It is not a de Polignac number, because 65649660197463 - 2¹² = 65649660193367 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65649660197391 and 65649660197400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65649660197467) 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, 273427093 + ... + 273667086.

Almost surely, 2^{65649660197463} is an apocalyptic number.

65649660197463 is a deficient number, since it is larger than the sum of its proper divisors (31076590826537).

65649660197463 is a wasteful number, since it uses less digits than its factorization.

65649660197463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547094451 (or 547094448 counting only the distinct ones).

The product of its (nonzero) digits is 1058158080, while the sum is 72.

The spelling of 65649660197463 in words is "sixty-five trillion, six hundred forty-nine billion, six hundred sixty million, one hundred ninety-seven thousand, four hundred sixty-three".