16660131 has 8 divisors (see below), whose sum is σ = 23382720. Its totient is φ = 10522152.

The previous prime is 16660109. The next prime is 16660151. The reversal of 16660131 is 13106661.

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

It is not a de Polignac number, because 16660131 - 2¹⁵ = 16627363 is a prime.

It is a super-2 number, since 2×16660131² = 555119929874322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16660151) 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, 146085 + ... + 146198.

It is an arithmetic number, because the mean of its divisors is an integer number (2922840).

Almost surely, 2^16660131 is an apocalyptic number.

16660131 is a deficient number, since it is larger than the sum of its proper divisors (6722589).

16660131 is a wasteful number, since it uses less digits than its factorization.

16660131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292305.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 16660131 is about 4081.6823737278. The cubic root of 16660131 is about 255.4030841458.

Adding to 16660131 its reverse (13106661), we get a palindrome (29766792).

The spelling of 16660131 in words is "sixteen million, six hundred sixty thousand, one hundred thirty-one".