64320094020 has 384 divisors, whose sum is σ = 231481958400. Its totient is φ = 13252861440.

The previous prime is 64320093989. The next prime is 64320094081. The reversal of 64320094020 is 2049002346.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 11501425 + ... + 11507015.

It is an arithmetic number, because the mean of its divisors is an integer number (602817600).

Almost surely, 2^64320094020 is an apocalyptic number.

64320094020 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 64320094020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115740979200).

64320094020 is an abundant number, since it is smaller than the sum of its proper divisors (167161864380).

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

64320094020 is a wasteful number, since it uses less digits than its factorization.

64320094020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5680 (or 5664 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 64320094020 its reverse (2049002346), we get a palindrome (66369096366).

The spelling of 64320094020 in words is "sixty-four billion, three hundred twenty million, ninety-four thousand, twenty".