64005064 has 8 divisors (see below), whose sum is σ = 120009510. Its totient is φ = 32002528.

The previous prime is 64005041. The next prime is 64005077. The reversal of 64005064 is 46050046.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 61308900 + 2696164 = 7830^2 + 1642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000309 + ... + 4000324.

Almost surely, 2^64005064 is an apocalyptic number.

It is an amenable number.

64005064 is a deficient number, since it is larger than the sum of its proper divisors (56004446).

64005064 is a wasteful number, since it uses less digits than its factorization.

64005064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000639 (or 8000635 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 64005064 is about 8000.3164937395. The cubic root of 64005064 is about 400.0105497218.

The spelling of 64005064 in words is "sixty-four million, five thousand, sixty-four".