1611161066166 has 32 divisors (see below), whose sum is σ = 3228388289280. Its totient is φ = 536043510816.

The previous prime is 1611161066159. The next prime is 1611161066167. The reversal of 1611161066166 is 6616601611161.

It is a super-2 number, since 2×1611161066166² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611161066167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7579845 + ... + 7789503.

It is an arithmetic number, because the mean of its divisors is an integer number (100887134040).

Almost surely, 2^{1611161066166} is an apocalyptic number.

1611161066166 is an abundant number, since it is smaller than the sum of its proper divisors (1617227223114).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1611161066166 is a wasteful number, since it uses less digits than its factorization.

1611161066166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212068.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 1611161066166 in words is "one trillion, six hundred eleven billion, one hundred sixty-one million, sixty-six thousand, one hundred sixty-six".