166380216646702 has 8 divisors (see below), whose sum is σ = 253800330478200. Its totient is φ = 81780106487304.

The previous prime is 166380216646687. The next prime is 166380216646703. The reversal of 166380216646702 is 207646612083661.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166380216646703) 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, 705000917877 + ... + 705000918112.

It is an arithmetic number, because the mean of its divisors is an integer number (31725041309775).

Almost surely, 2^{166380216646702} is an apocalyptic number.

166380216646702 is a deficient number, since it is larger than the sum of its proper divisors (87420113831498).

166380216646702 is a wasteful number, since it uses less digits than its factorization.

166380216646702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410001836050.

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 166380216646702 in words is "one hundred sixty-six trillion, three hundred eighty billion, two hundred sixteen million, six hundred forty-six thousand, seven hundred two".