166631002103 has 8 divisors (see below), whose sum is σ = 170704176720. Its totient is φ = 162558256320.

The previous prime is 166631002061. The next prime is 166631002121. The reversal of 166631002103 is 301200136661.

It is a happy number.

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

It is not a de Polignac number, because 166631002103 - 2²⁶ = 166563893239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166631002123) 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, 765101 + ... + 958457.

It is an arithmetic number, because the mean of its divisors is an integer number (21338022090).

Almost surely, 2^166631002103 is an apocalyptic number.

166631002103 is a deficient number, since it is larger than the sum of its proper divisors (4073174617).

166631002103 is a wasteful number, since it uses less digits than its factorization.

166631002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214417.

The product of its (nonzero) digits is 3888, while the sum is 29.

Adding to 166631002103 its reverse (301200136661), we get a palindrome (467831138764).

The spelling of 166631002103 in words is "one hundred sixty-six billion, six hundred thirty-one million, two thousand, one hundred three".