166132036661231 has 8 divisors (see below), whose sum is σ = 166238089819200. Its totient is φ = 166026017303712.

The previous prime is 166132036661219. The next prime is 166132036661251. The reversal of 166132036661231 is 132166630231661.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 166132036661231 - 2⁶ = 166132036661167 is a prime.

It is a super-2 number, since 2×166132036661231² (a number of 29 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 (166132036661251) 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, 1386845 + ... + 18280793.

It is an arithmetic number, because the mean of its divisors is an integer number (20779761227400).

Almost surely, 2^{166132036661231} is an apocalyptic number.

166132036661231 is a deficient number, since it is larger than the sum of its proper divisors (106053157969).

166132036661231 is a wasteful number, since it uses less digits than its factorization.

166132036661231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16900225.

The product of its (nonzero) digits is 839808, while the sum is 47.

Adding to 166132036661231 its reverse (132166630231661), we get a palindrome (298298666892892).

The spelling of 166132036661231 in words is "one hundred sixty-six trillion, one hundred thirty-two billion, thirty-six million, six hundred sixty-one thousand, two hundred thirty-one".