166553672703 has 16 divisors (see below), whose sum is σ = 242684188032. Its totient is φ = 100764828000.

The previous prime is 166553672651. The next prime is 166553672723. The reversal of 166553672703 is 307276355661.

It is not a de Polignac number, because 166553672703 - 2¹⁰ = 166553671679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166553672723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4400668 + ... + 4438353.

It is an arithmetic number, because the mean of its divisors is an integer number (15167761752).

Almost surely, 2^166553672703 is an apocalyptic number.

166553672703 is a deficient number, since it is larger than the sum of its proper divisors (76130515329).

166553672703 is a wasteful number, since it uses less digits than its factorization.

166553672703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839606.

The product of its (nonzero) digits is 4762800, while the sum is 51.

The spelling of 166553672703 in words is "one hundred sixty-six billion, five hundred fifty-three million, six hundred seventy-two thousand, seven hundred three".