64316025500 has 96 divisors (see below), whose sum is σ = 145139904000. Its totient is φ = 24872064000.

The previous prime is 64316025497. The next prime is 64316025517. The reversal of 64316025500 is 552061346.

It is a super-2 number, since 2×64316025500² (a number of 22 digits) contains 22 as substring.

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, 30208436 + ... + 30210564.

It is an arithmetic number, because the mean of its divisors is an integer number (1511874000).

Almost surely, 2^64316025500 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 64316025500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72569952000).

64316025500 is an abundant number, since it is smaller than the sum of its proper divisors (80823878500).

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

64316025500 is a wasteful number, since it uses less digits than its factorization.

64316025500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4128 (or 4116 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 64316025500 its reverse (552061346), we get a palindrome (64868086846).

The spelling of 64316025500 in words is "sixty-four billion, three hundred sixteen million, twenty-five thousand, five hundred".