64755340173760 has 224 divisors, whose sum is σ = 165206527274880. Its totient is φ = 24089545801728.

The previous prime is 64755340173737. The next prime is 64755340173781. The reversal of 64755340173760 is 6737104355746.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 64755340173695 and 64755340173704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792529069 + ... + 792610771.

It is an arithmetic number, because the mean of its divisors is an integer number (737529139620).

Almost surely, 2^{64755340173760} 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 64755340173760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82603263637440).

64755340173760 is an abundant number, since it is smaller than the sum of its proper divisors (100451187101120).

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

64755340173760 is a wasteful number, since it uses less digits than its factorization.

64755340173760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83463 (or 83453 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 58.

The spelling of 64755340173760 in words is "sixty-four trillion, seven hundred fifty-five billion, three hundred forty million, one hundred seventy-three thousand, seven hundred sixty".