166113926181107 has 4 divisors (see below), whose sum is σ = 166113955898256. Its totient is φ = 166113896463960.

The previous prime is 166113926181101. The next prime is 166113926181167. The reversal of 166113926181107 is 701181629311661.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-166113926181107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166113926181101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3660908 + ... + 18591129.

It is an arithmetic number, because the mean of its divisors is an integer number (41528488974564).

Almost surely, 2^{166113926181107} is an apocalyptic number.

166113926181107 is a deficient number, since it is larger than the sum of its proper divisors (29717149).

166113926181107 is an equidigital number, since it uses as much as digits as its factorization.

166113926181107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29717148.

The product of its (nonzero) digits is 653184, while the sum is 53.

The spelling of 166113926181107 in words is "one hundred sixty-six trillion, one hundred thirteen billion, nine hundred twenty-six million, one hundred eighty-one thousand, one hundred seven".