166701701699 has 8 divisors (see below), whose sum is σ = 183344589120. Its totient is φ = 150604482816.

The previous prime is 166701701681. The next prime is 166701701707. The reversal of 166701701699 is 996107107661.

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

It is a cyclic number.

It is not a de Polignac number, because 166701701699 - 2⁸ = 166701701443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 166701701699.

It is not an unprimeable number, because it can be changed into a prime (166701701609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136416494 + ... + 136417715.

It is an arithmetic number, because the mean of its divisors is an integer number (22918073640).

Almost surely, 2^166701701699 is an apocalyptic number.

166701701699 is a deficient number, since it is larger than the sum of its proper divisors (16642887421).

166701701699 is a wasteful number, since it uses less digits than its factorization.

166701701699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272834269.

The product of its (nonzero) digits is 857304, while the sum is 53.

The spelling of 166701701699 in words is "one hundred sixty-six billion, seven hundred one million, seven hundred one thousand, six hundred ninety-nine".