13166356105 has 24 divisors (see below), whose sum is σ = 18422958600. Its totient is φ = 9006842880.

The previous prime is 13166356087. The next prime is 13166356127. The reversal of 13166356105 is 50165366131.

It can be written as a sum of positive squares in 4 ways, for example, as 69155856 + 13097200249 = 8316^2 + 114443^2 .

It is not a de Polignac number, because 13166356105 - 2⁷ = 13166355977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39321 + ... + 166969.

It is an arithmetic number, because the mean of its divisors is an integer number (767623275).

Almost surely, 2^13166356105 is an apocalyptic number.

It is an amenable number.

13166356105 is a deficient number, since it is larger than the sum of its proper divisors (5256602495).

13166356105 is a wasteful number, since it uses less digits than its factorization.

13166356105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128089 (or 128082 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 37.

The spelling of 13166356105 in words is "thirteen billion, one hundred sixty-six million, three hundred fifty-six thousand, one hundred five".