65664226406630 has 16 divisors (see below), whose sum is σ = 118196324507664. Its totient is φ = 26265531234720.

The previous prime is 65664226406621. The next prime is 65664226406657. The reversal of 65664226406630 is 3660462246656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18177812 + ... + 21488631.

It is an arithmetic number, because the mean of its divisors is an integer number (7387270281729).

Almost surely, 2^{65664226406630} is an apocalyptic number.

65664226406630 is a deficient number, since it is larger than the sum of its proper divisors (52532098101034).

65664226406630 is a wasteful number, since it uses less digits than its factorization.

65664226406630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39831991.

The product of its (nonzero) digits is 44789760, while the sum is 56.

The spelling of 65664226406630 in words is "sixty-five trillion, six hundred sixty-four billion, two hundred twenty-six million, four hundred six thousand, six hundred thirty".