64755250560000 has 3960 divisors, whose sum is σ = 316397314224992. Its totient is φ = 12408422400000.

The previous prime is 64755250559911. The next prime is 64755250560047. The reversal of 64755250560000 is 6505255746.

64755250560000 is a `hidden beast` number, since 6 + 4 + 75 + 525 + 0 + 56 + 0 + 0 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3960).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 63423359490 + ... + 63423360510.

Almost surely, 2^{64755250560000} is an apocalyptic number.

64755250560000 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 64755250560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158198657112496).

64755250560000 is an abundant number, since it is smaller than the sum of its proper divisors (251642063664992).

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

64755250560000 is a wasteful number, since it uses less digits than its factorization.

64755250560000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 64755250560000 in words is "sixty-four trillion, seven hundred fifty-five billion, two hundred fifty million, five hundred sixty thousand".