65648461936848 has 320 divisors, whose sum is σ = 207302763773952. Its totient is φ = 17494052083200.

The previous prime is 65648461936831. The next prime is 65648461936853. The reversal of 65648461936848 is 84863916484656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 194894173 + ... + 195230723.

Almost surely, 2^{65648461936848} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65648461936848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103651381886976).

65648461936848 is an abundant number, since it is smaller than the sum of its proper divisors (141654301837104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65648461936848 is a wasteful number, since it uses less digits than its factorization.

65648461936848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337222 (or 337216 counting only the distinct ones).

The product of its digits is 5733089280, while the sum is 78.

The spelling of 65648461936848 in words is "sixty-five trillion, six hundred forty-eight billion, four hundred sixty-one million, nine hundred thirty-six thousand, eight hundred forty-eight".