64016386560 has 960 divisors, whose sum is σ = 268179335424. Its totient is φ = 14332723200.

The previous prime is 64016386541. The next prime is 64016386589. The reversal of 64016386560 is 6568361046.

64016386560 is a `hidden beast` number, since 6 + 4 + 0 + 1 + 6 + 3 + 86 + 560 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

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 95 ways as a sum of consecutive naturals, for example, 265628040 + ... + 265628280.

Almost surely, 2^64016386560 is an apocalyptic number.

64016386560 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 64016386560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134089667712).

64016386560 is an abundant number, since it is smaller than the sum of its proper divisors (204162948864).

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

64016386560 is an equidigital number, since it uses as much as digits as its factorization.

64016386560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 45.

The spelling of 64016386560 in words is "sixty-four billion, sixteen million, three hundred eighty-six thousand, five hundred sixty".