66717205761702 has 32 divisors (see below), whose sum is σ = 135403901039232. Its totient is φ = 21912840324864.

The previous prime is 66717205761673. The next prime is 66717205761721. The reversal of 66717205761702 is 20716750271766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252366508 + ... + 252630735.

It is an arithmetic number, because the mean of its divisors is an integer number (4231371907476).

Almost surely, 2^{66717205761702} is an apocalyptic number.

66717205761702 is an abundant number, since it is smaller than the sum of its proper divisors (68686695277530).

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

66717205761702 is a wasteful number, since it uses less digits than its factorization.

66717205761702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504997572.

The product of its (nonzero) digits is 10372320, while the sum is 57.

The spelling of 66717205761702 in words is "sixty-six trillion, seven hundred seventeen billion, two hundred five million, seven hundred sixty-one thousand, seven hundred two".