166068254037754 has 4 divisors (see below), whose sum is σ = 249102381056634. Its totient is φ = 83034127018876.

The previous prime is 166068254037737. The next prime is 166068254037773. The reversal of 166068254037754 is 457730452860661.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 164521282762225 + 1546971275529 = 12826585^2 + 1243773^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41517063509437 + ... + 41517063509440.

Almost surely, 2^{166068254037754} is an apocalyptic number.

166068254037754 is a deficient number, since it is larger than the sum of its proper divisors (83034127018880).

166068254037754 is an equidigital number, since it uses as much as digits as its factorization.

166068254037754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83034127018879.

The product of its (nonzero) digits is 203212800, while the sum is 64.

The spelling of 166068254037754 in words is "one hundred sixty-six trillion, sixty-eight billion, two hundred fifty-four million, thirty-seven thousand, seven hundred fifty-four".