166554501703 has 8 divisors (see below), whose sum is σ = 171096356448. Its totient is φ = 162014772384.

The previous prime is 166554501689. The next prime is 166554501709. The reversal of 166554501703 is 307105455661.

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

It is not a de Polignac number, because 166554501703 - 2⁵ = 166554501671 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 166554501703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166554501709) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 371851 + ... + 686572.

It is an arithmetic number, because the mean of its divisors is an integer number (21387044556).

Almost surely, 2^166554501703 is an apocalyptic number.

166554501703 is a deficient number, since it is larger than the sum of its proper divisors (4541854745).

166554501703 is a wasteful number, since it uses less digits than its factorization.

166554501703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062713.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 166554501703 in words is "one hundred sixty-six billion, five hundred fifty-four million, five hundred one thousand, seven hundred three".