65575216740 has 288 divisors, whose sum is σ = 211284864000. Its totient is φ = 15156092160.

The previous prime is 65575216739. The next prime is 65575216787. The reversal of 65575216740 is 4761257556.

It is a self number, because there is not a number n which added to its sum of digits gives 65575216740.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 83322627 + ... + 83323413.

It is an arithmetic number, because the mean of its divisors is an integer number (733628000).

Almost surely, 2^65575216740 is an apocalyptic number.

65575216740 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 65575216740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105642432000).

65575216740 is an abundant number, since it is smaller than the sum of its proper divisors (145709647260).

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

65575216740 is a wasteful number, since it uses less digits than its factorization.

65575216740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1330 counting only the distinct ones).

The product of its (nonzero) digits is 1764000, while the sum is 48.

The spelling of 65575216740 in words is "sixty-five billion, five hundred seventy-five million, two hundred sixteen thousand, seven hundred forty".