166203133023 has 8 divisors (see below), whose sum is σ = 233267555200. Its totient is φ = 104970399768.

The previous prime is 166203133021. The next prime is 166203133069. The reversal of 166203133023 is 320331302661.

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

It is not a de Polignac number, because 166203133023 - 2¹ = 166203133021 is a prime.

It is a super-2 number, since 2×166203133023² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166203133021) 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, 1457922163 + ... + 1457922276.

It is an arithmetic number, because the mean of its divisors is an integer number (29158444400).

Almost surely, 2^166203133023 is an apocalyptic number.

166203133023 is a deficient number, since it is larger than the sum of its proper divisors (67064422177).

166203133023 is a wasteful number, since it uses less digits than its factorization.

166203133023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915844461.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 166203133023 its reverse (320331302661), we get a palindrome (486534435684).

The spelling of 166203133023 in words is "one hundred sixty-six billion, two hundred three million, one hundred thirty-three thousand, twenty-three".