66711702 has 8 divisors (see below), whose sum is σ = 133423416. Its totient is φ = 22237232.

The previous prime is 66711691. The next prime is 66711709. The reversal of 66711702 is 20711766.

It is a happy number.

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

66711702 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 66711702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66711709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5559303 + ... + 5559314.

It is an arithmetic number, because the mean of its divisors is an integer number (16677927).

Almost surely, 2^66711702 is an apocalyptic number.

66711702 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

66711702 is a wasteful number, since it uses less digits than its factorization.

66711702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11118622.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 66711702 is about 8167.7231833602. The cubic root of 66711702 is about 405.5714171510.

The spelling of 66711702 in words is "sixty-six million, seven hundred eleven thousand, seven hundred two".