166113926181105 has 96 divisors (see below), whose sum is σ = 315055250227584. Its totient is φ = 74494020916224.

The previous prime is 166113926181101. The next prime is 166113926181167. The reversal of 166113926181105 is 501181629311661.

It is not a de Polignac number, because 166113926181105 - 2² = 166113926181101 is a prime.

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 95 ways as a sum of consecutive naturals, for example, 266803494 + ... + 267425376.

It is an arithmetic number, because the mean of its divisors is an integer number (3281825523204).

Almost surely, 2^{166113926181105} is an apocalyptic number.

166113926181105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

166113926181105 is a deficient number, since it is larger than the sum of its proper divisors (148941324046479).

166113926181105 is a wasteful number, since it uses less digits than its factorization.

166113926181105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628815 (or 628808 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 51.

The spelling of 166113926181105 in words is "one hundred sixty-six trillion, one hundred thirteen billion, nine hundred twenty-six million, one hundred eighty-one thousand, one hundred five".