64920224866 has 8 divisors (see below), whose sum is σ = 111291814080. Its totient is φ = 27822953508.

The previous prime is 64920224851. The next prime is 64920224947. The reversal of 64920224866 is 66842202946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318579446 + ... + 2318579473.

It is an arithmetic number, because the mean of its divisors is an integer number (13911476760).

Almost surely, 2^64920224866 is an apocalyptic number.

64920224866 is a deficient number, since it is larger than the sum of its proper divisors (46371589214).

64920224866 is a wasteful number, since it uses less digits than its factorization.

64920224866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637158928.

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 64920224866 in words is "sixty-four billion, nine hundred twenty million, two hundred twenty-four thousand, eight hundred sixty-six".