64069144 has 8 divisors (see below), whose sum is σ = 120129660. Its totient is φ = 32034568.

The previous prime is 64069133. The next prime is 64069153. The reversal of 64069144 is 44196046.

64069144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4004314 + ... + 4004329.

Almost surely, 2^64069144 is an apocalyptic number.

It is an amenable number.

64069144 is a deficient number, since it is larger than the sum of its proper divisors (56060516).

64069144 is a wasteful number, since it uses less digits than its factorization.

64069144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8008649 (or 8008645 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 64069144 is about 8004.3203334199. The cubic root of 64069144 is about 400.1439981551.

The spelling of 64069144 in words is "sixty-four million, sixty-nine thousand, one hundred forty-four".