64054006664 has 8 divisors (see below), whose sum is σ = 120101262510. Its totient is φ = 32027003328.

The previous prime is 64054006657. The next prime is 64054006741. The reversal of 64054006664 is 46660045046.

It can be written as a sum of positive squares in only one way, i.e., 58762608100 + 5291398564 = 242410^2 + 72742^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4003375409 + ... + 4003375424.

Almost surely, 2^64054006664 is an apocalyptic number.

It is an amenable number.

64054006664 is a deficient number, since it is larger than the sum of its proper divisors (56047255846).

64054006664 is a wasteful number, since it uses less digits than its factorization.

64054006664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8006750839 (or 8006750835 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 41.

The spelling of 64054006664 in words is "sixty-four billion, fifty-four million, six thousand, six hundred sixty-four".