75065215680 has 336 divisors, whose sum is σ = 317777189184. Its totient is φ = 15837880320.

The previous prime is 75065215601. The next prime is 75065215723. The reversal of 75065215680 is 8651256057.

75065215680 is a `hidden beast` number, since 7 + 5 + 0 + 65 + 21 + 568 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 118870 + ... + 405290.

It is an arithmetic number, because the mean of its divisors is an integer number (945765444).

Almost surely, 2^75065215680 is an apocalyptic number.

75065215680 is a gapful number since it is divisible by the number (70) 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 75065215680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158888594592).

75065215680 is an abundant number, since it is smaller than the sum of its proper divisors (242711973504).

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

75065215680 is a wasteful number, since it uses less digits than its factorization.

75065215680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286464 (or 286451 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 45.

The spelling of 75065215680 in words is "seventy-five billion, sixty-five million, two hundred fifteen thousand, six hundred eighty".