166365121212332 has 24 divisors (see below), whose sum is σ = 332731585541376. Its totient is φ = 71299049851728.

The previous prime is 166365121212317. The next prime is 166365121212337. The reversal of 166365121212332 is 233212121563661.

It is not an unprimeable number, because it can be changed into a prime (166365121212337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4857338 + ... + 18876545.

It is an arithmetic number, because the mean of its divisors is an integer number (13863816064224).

Almost surely, 2^{166365121212332} is an apocalyptic number.

It is an amenable number.

166365121212332 is an abundant number, since it is smaller than the sum of its proper divisors (166366464329044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

166365121212332 is a wasteful number, since it uses less digits than its factorization.

166365121212332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23984237 (or 23984235 counting only the distinct ones).

The product of its digits is 466560, while the sum is 44.

Adding to 166365121212332 its reverse (233212121563661), we get a palindrome (399577242775993).

The spelling of 166365121212332 in words is "one hundred sixty-six trillion, three hundred sixty-five billion, one hundred twenty-one million, two hundred twelve thousand, three hundred thirty-two".