64204427320 has 64 divisors (see below), whose sum is σ = 164444567040. Its totient is φ = 22331971200.

The previous prime is 64204427279. The next prime is 64204427321. The reversal of 64204427320 is 2372440246.

64204427320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64204427321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3162036 + ... + 3182275.

It is an arithmetic number, because the mean of its divisors is an integer number (2569446360).

Almost surely, 2^64204427320 is an apocalyptic number.

It is an amenable number.

64204427320 is an abundant number, since it is smaller than the sum of its proper divisors (100240139720).

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

64204427320 is a wasteful number, since it uses less digits than its factorization.

64204427320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344356 (or 6344352 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 34.

Adding to 64204427320 its reverse (2372440246), we get a palindrome (66576867566).

The spelling of 64204427320 in words is "sixty-four billion, two hundred four million, four hundred twenty-seven thousand, three hundred twenty".