64604511360 has 640 divisors, whose sum is σ = 245526811200. Its totient is φ = 16142229504.

The previous prime is 64604511353. The next prime is 64604511383. The reversal of 64604511360 is 6311540646.

It is a happy number.

64604511360 is a `hidden beast` number, since 6 + 4 + 604 + 5 + 11 + 36 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 105390414 + ... + 105391026.

Almost surely, 2^64604511360 is an apocalyptic number.

64604511360 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 64604511360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122763405600).

64604511360 is an abundant number, since it is smaller than the sum of its proper divisors (180922299840).

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

64604511360 is a wasteful number, since it uses less digits than its factorization.

64604511360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770 (or 749 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 64604511360 in words is "sixty-four billion, six hundred four million, five hundred eleven thousand, three hundred sixty".