166277117307 has 16 divisors (see below), whose sum is σ = 253545555200. Its totient is φ = 94951408032.

The previous prime is 166277117299. The next prime is 166277117311. The reversal of 166277117307 is 703711772661.

It is not a de Polignac number, because 166277117307 - 2³ = 166277117299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (166277117207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2638432 + ... + 2700717.

It is an arithmetic number, because the mean of its divisors is an integer number (15846597200).

Almost surely, 2^166277117307 is an apocalyptic number.

166277117307 is a deficient number, since it is larger than the sum of its proper divisors (87268437893).

166277117307 is a wasteful number, since it uses less digits than its factorization.

166277117307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5340642.

The product of its (nonzero) digits is 518616, while the sum is 48.

Adding to 166277117307 its reverse (703711772661), we get a palindrome (869988889968).

The spelling of 166277117307 in words is "one hundred sixty-six billion, two hundred seventy-seven million, one hundred seventeen thousand, three hundred seven".