64244204664 has 16 divisors (see below), whose sum is σ = 160610511720. Its totient is φ = 21414734880.

The previous prime is 64244204641. The next prime is 64244204677. The reversal of 64244204664 is 46640244246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338420907 + ... + 1338420954.

Almost surely, 2^64244204664 is an apocalyptic number.

It is an amenable number.

64244204664 is an abundant number, since it is smaller than the sum of its proper divisors (96366307056).

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

64244204664 is a wasteful number, since it uses less digits than its factorization.

64244204664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2676841870 (or 2676841866 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 64244204664 in words is "sixty-four billion, two hundred forty-four million, two hundred four thousand, six hundred sixty-four".