65109643728000 has 256 divisors, whose sum is σ = 222801005306880. Its totient is φ = 16802488320000.

The previous prime is 65109643727983. The next prime is 65109643728061. The reversal of 65109643728000 is 82734690156.

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, 20390241 + ... + 23366240.

It is an arithmetic number, because the mean of its divisors is an integer number (870316426980).

It is a 2-persistent number, because it is pandigital, and so is 2⋅65109643728000 = 130219287456000, but 3⋅65109643728000 = 195328931184000 is not.

Almost surely, 2^{65109643728000} is an apocalyptic number.

65109643728000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65109643728000 is an abundant number, since it is smaller than the sum of its proper divisors (157691361578880).

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

65109643728000 is a wasteful number, since it uses less digits than its factorization.

65109643728000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43756544 (or 43756522 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 65109643728000 in words is "sixty-five trillion, one hundred nine billion, six hundred forty-three million, seven hundred twenty-eight thousand".