166541234013 has 48 divisors (see below), whose sum is σ = 301228387200. Its totient is φ = 86137050240.

The previous prime is 166541234011. The next prime is 166541234051. The reversal of 166541234013 is 310432145661.

166541234013 is a `hidden beast` number, since 1 + 66 + 541 + 2 + 3 + 40 + 13 = 666.

It is not a de Polignac number, because 166541234013 - 2¹ = 166541234011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166541234011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 366018 + ... + 683411.

It is an arithmetic number, because the mean of its divisors is an integer number (6275591400).

Almost surely, 2^166541234013 is an apocalyptic number.

It is an amenable number.

166541234013 is a deficient number, since it is larger than the sum of its proper divisors (134687153187).

166541234013 is a wasteful number, since it uses less digits than its factorization.

166541234013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049682 (or 1049679 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 166541234013 its reverse (310432145661), we get a palindrome (476973379674).

The spelling of 166541234013 in words is "one hundred sixty-six billion, five hundred forty-one million, two hundred thirty-four thousand, thirteen".