2161177070105 has 16 divisors (see below), whose sum is σ = 2684013995520. Its totient is φ = 1668592804032.

The previous prime is 2161177070093. The next prime is 2161177070123. The reversal of 2161177070105 is 5010707711612.

It is a cyclic number.

It is not a de Polignac number, because 2161177070105 - 2⁴ = 2161177070089 is a prime.

It is a super-2 number, since 2×2161177070105² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2926949 + ... + 3590178.

It is an arithmetic number, because the mean of its divisors is an integer number (167750874720).

Almost surely, 2^{2161177070105} is an apocalyptic number.

It is an amenable number.

2161177070105 is a deficient number, since it is larger than the sum of its proper divisors (522836925415).

2161177070105 is a wasteful number, since it uses less digits than its factorization.

2161177070105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6519448.

The product of its (nonzero) digits is 20580, while the sum is 38.

The spelling of 2161177070105 in words is "two trillion, one hundred sixty-one billion, one hundred seventy-seven million, seventy thousand, one hundred five".