65247882240 has 352 divisors, whose sum is σ = 223835028480. Its totient is φ = 16163536896.

The previous prime is 65247882239. The next prime is 65247882251. The reversal of 65247882240 is 4228874256.

It is a super-3 number, since 3×65247882240³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 65247882240.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20626899 + ... + 20630061.

Almost surely, 2^65247882240 is an apocalyptic number.

65247882240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65247882240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111917514240).

65247882240 is an abundant number, since it is smaller than the sum of its proper divisors (158587146240).

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

65247882240 is a wasteful number, since it uses less digits than its factorization.

65247882240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 48.

The spelling of 65247882240 in words is "sixty-five billion, two hundred forty-seven million, eight hundred eighty-two thousand, two hundred forty".