1166165655166 has 8 divisors (see below), whose sum is σ = 1749374071704. Its totient is φ = 583040964600.

The previous prime is 1166165655163. The next prime is 1166165655253. The reversal of 1166165655166 is 6615565616611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166165655163) 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, 20896660 + ... + 20952391.

It is an arithmetic number, because the mean of its divisors is an integer number (218671758963).

Almost surely, 2^{1166165655166} is an apocalyptic number.

1166165655166 is a deficient number, since it is larger than the sum of its proper divisors (583208416538).

1166165655166 is a wasteful number, since it uses less digits than its factorization.

1166165655166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41862986.

The product of its digits is 5832000, while the sum is 55.

The spelling of 1166165655166 in words is "one trillion, one hundred sixty-six billion, one hundred sixty-five million, six hundred fifty-five thousand, one hundred sixty-six".