666716702 has 8 divisors (see below), whose sum is σ = 1016469912. Its totient is φ = 327893400.

The previous prime is 666716689. The next prime is 666716723. The reversal of 666716702 is 207617666.

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

It is a super-2 number, since 2×666716702² = 889022321451513608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 666716702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732324 + ... + 2732567.

It is an arithmetic number, because the mean of its divisors is an integer number (127058739).

Almost surely, 2^666716702 is an apocalyptic number.

666716702 is a deficient number, since it is larger than the sum of its proper divisors (349753210).

666716702 is a wasteful number, since it uses less digits than its factorization.

666716702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464954.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 666716702 is about 25820.8578866001. The cubic root of 666716702 is about 873.6023191344.

The spelling of 666716702 in words is "six hundred sixty-six million, seven hundred sixteen thousand, seven hundred two".