64650656266125 has 32 divisors (see below), whose sum is σ = 107600753445120. Its totient is φ = 34473279041600.

The previous prime is 64650656266099. The next prime is 64650656266129. The reversal of 64650656266125 is 52166265605646.

It is not a de Polignac number, because 64650656266125 - 2⁸ = 64650656265869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64650656266129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15846105 + ... + 19503854.

It is an arithmetic number, because the mean of its divisors is an integer number (3362523545160).

Almost surely, 2^{64650656266125} is an apocalyptic number.

It is an amenable number.

64650656266125 is a deficient number, since it is larger than the sum of its proper divisors (42950097178995).

64650656266125 is a wasteful number, since it uses less digits than its factorization.

64650656266125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35354854 (or 35354844 counting only the distinct ones).

The product of its (nonzero) digits is 93312000, while the sum is 60.

The spelling of 64650656266125 in words is "sixty-four trillion, six hundred fifty billion, six hundred fifty-six million, two hundred sixty-six thousand, one hundred twenty-five".